Yousign Status

Postmortem: # Impact and Incident Resolution Report

Dear Yousign users,

On December 2nd, 2025, our services experienced two consecutive incidents impacting access to the Yousign platform and temporarily delaying signature processing.
All services were fully restored at 11:53 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the two incidents

First Incident (10:53 CET → 11:10 CET)

A hardware malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.
The component entered a fault state and shut down, causing a temporary interruption of access to the platform.

It automatically restarted according to its configuration, and all application services were restored at 11:10 CET.

Second Incident (11:32 CET → 11:53 CET)

Immediately after the first recovery, we notified our infrastructure provider.
During the provider's on-site verification of the faulty hardware, a manual reset was triggered on the same component, even though the services had already recovered.

This second reset generated a new interruption between 11:32 CET and 11:45 CET, with signature delays fully resolved at 11:53 CET.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

Execution of an exceptional maintenance operation on Monday, December 8th, contributing to the ongoing reinforcement of our traffic management layer and its fault tolerance.

Updated operational guidelines with our infrastructure provider to avoid unnecessary manual resets on recovered systems.

Additional diagnostics and hardware-level actions to ensure long-term reliability.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: The incident has been resolved and no more delays are observed.

A postmortem will be provided.

Monitoring: We are continuing to monitor for any further issues.

Monitoring: Our teams have identified the root cause of the issue, and the fix is being applied. All our Applications are available since 11:06 CET. Please note that the eSignature will still experience some delay while we process the backlog accumulated during the outage. We will keep you updated as soon as everything is fully back to normal.

Monitoring: The situation is back to normal since 11:06 CET

Identified: Our teams have identified the root cause of the issue, and we are now applying the fix. A return to normal service is expected shortly. We will keep you updated.

Investigating: All applications (including API) are currently unavailable since 10:53 CET. Our teams have identified the root cause of the issue, and we are now applying the fix. A return to normal service is expected shortly. We will keep you updated.

Postmortem: # Impact and Incident Resolution Report

Dear Yousign users,

On December 2nd, 2025, our services experienced two consecutive incidents impacting access to the Yousign platform and temporarily delaying signature processing.
All services were fully restored at 11:53 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the two incidents

First Incident (10:53 CET → 11:10 CET)

A hardware malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.
The component entered a fault state and shut down, causing a temporary interruption of access to the platform.

It automatically restarted according to its configuration, and all application services were restored at 11:10 CET.

Second Incident (11:32 CET → 11:53 CET)

Immediately after the first recovery, we notified our infrastructure provider.
During the provider's on-site verification of the faulty hardware, a manual reset was triggered on the same component, even though the services had already recovered.

This second reset generated a new interruption between 11:32 CET and 11:45 CET, with signature delays fully resolved at 11:53 CET.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

Execution of an exceptional maintenance operation on Monday, December 8th, contributing to the ongoing reinforcement of our traffic management layer and its fault tolerance.

Updated operational guidelines with our infrastructure provider to avoid unnecessary manual resets on recovered systems.

Additional diagnostics and hardware-level actions to ensure long-term reliability.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: All applications have been operational again since 11:51, and all pending eSignatures were fully processed by 11:53.

The root cause of the second incident has been clearly identified. One of our datacenter servers experienced a failure. We performed an initial restart, and the datacenter technician - informed of the inaccessibility - initiated a second restart. The sequence of these actions caused a second incident immediately after the first.

All services are now fully operational.

We apologize for the impact this has had on your activity, and we will provide a full description of these events in the upcoming postmortem.

Monitoring: We are continuing to monitor for any further issues.

Monitoring: Our teams have identified the root cause of the issue, and the fix is being applied. All our Applications are available since 11:48 CET.

Please note that the eSignature will still experience some delay while we process the backlog accumulated during the outage. We will keep you updated as soon as everything is fully back to normal.

Investigating: All applications (including API) are currently unavailable since 11:32 CET.

Our teams are actively working on the issue.

We will keep you updated.

Postmortem: Impact and Incident Resolution Report

Dear Yousign users,

On December 4th, 2025 at 12:09 CET, our services experienced delays in signatures.

The resolution required a hardware intervention at 12:46 CET which led to service unavailability.

With the end of the intervention, all services were fully restored at 12:57 CET and delay returned to normal at 13:10 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the incident

A network malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.

The load balancer entered again in a faulty state.

During this period, Yousign applications and API were still available but delaying signatures (including eSeal).

After investigation, the engineering team had to perform hardware intervention on the faulty equipment in order to restore nominal state.

In the mean time, all services were unreachable between 12:46 CET and 12:57 CET.

The engineering team had to reload all network configuration.

All application services were restored at 12:57 CET.

Delay was totally absorbed at 13:10 CET.

It is important to known that the failing load balancer is the same one as in recent incidents.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

An exceptional maintenance is already planned on Monday December 8th for this equipment.

The maintenance is a cornerstone towards increase resilience of all Yousign services.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: All applications have been operational again since 13:15, and all pending eSignatures and eSeal were fully processed by 13:10. All services are now fully operational.

The root cause of the incident has been clearly identified.

We apologize for the impact this has had on your activity, and we will provide a full description of these events in the upcoming postmortem.

Monitoring: eSignature and eSeal are fully back to normal. A Postmortem will be publish soon.

Identified: Applications v2 and v3 are now available. We continue to experience delays in signing.

Identified: The v2 and v3 applications have been unavailable since 12:46. Our teams are currently investigating the issue.

Identified: The issue has been identified and our team is working on a fix. All applications are accessible, however signature processing is still experiencing a delay.

Investigating: We are continuing to investigate this issue.

Investigating: We are seeing a signature delay.

We apologize for any inconvenience.

If you have urgent questions, please contact our support team by sending an email to [email protected]

Postmortem: # Impact and Incident Resolution Report

Dear Yousign users,

On December 2nd, 2025, our services experienced two consecutive incidents impacting access to the Yousign platform and temporarily delaying signature processing.
All services were fully restored at 11:53 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the two incidents

First Incident (10:53 CET → 11:10 CET)

A hardware malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.
The component entered a fault state and shut down, causing a temporary interruption of access to the platform.

It automatically restarted according to its configuration, and all application services were restored at 11:10 CET.

Second Incident (11:32 CET → 11:53 CET)

Immediately after the first recovery, we notified our infrastructure provider.
During the provider's on-site verification of the faulty hardware, a manual reset was triggered on the same component, even though the services had already recovered.

This second reset generated a new interruption between 11:32 CET and 11:45 CET, with signature delays fully resolved at 11:53 CET.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

Execution of an exceptional maintenance operation on Monday, December 8th, contributing to the ongoing reinforcement of our traffic management layer and its fault tolerance.

Updated operational guidelines with our infrastructure provider to avoid unnecessary manual resets on recovered systems.

Additional diagnostics and hardware-level actions to ensure long-term reliability.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: The incident has been resolved and no more delays are observed.

A postmortem will be provided.

Monitoring: We are continuing to monitor for any further issues.

Monitoring: Our teams have identified the root cause of the issue, and the fix is being applied. All our Applications are available since 11:06 CET. Please note that the eSignature will still experience some delay while we process the backlog accumulated during the outage. We will keep you updated as soon as everything is fully back to normal.

Monitoring: The situation is back to normal since 11:06 CET

Identified: Our teams have identified the root cause of the issue, and we are now applying the fix. A return to normal service is expected shortly. We will keep you updated.

Investigating: All applications (including API) are currently unavailable since 10:53 CET. Our teams have identified the root cause of the issue, and we are now applying the fix. A return to normal service is expected shortly. We will keep you updated.

Postmortem: # Impact and Incident Resolution Report

Dear Yousign users,

On December 2nd, 2025, our services experienced two consecutive incidents impacting access to the Yousign platform and temporarily delaying signature processing.
All services were fully restored at 11:53 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the two incidents

First Incident (10:53 CET → 11:10 CET)

A hardware malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.
The component entered a fault state and shut down, causing a temporary interruption of access to the platform.

It automatically restarted according to its configuration, and all application services were restored at 11:10 CET.

Second Incident (11:32 CET → 11:53 CET)

Immediately after the first recovery, we notified our infrastructure provider.
During the provider's on-site verification of the faulty hardware, a manual reset was triggered on the same component, even though the services had already recovered.

This second reset generated a new interruption between 11:32 CET and 11:45 CET, with signature delays fully resolved at 11:53 CET.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

Execution of an exceptional maintenance operation on Monday, December 8th, contributing to the ongoing reinforcement of our traffic management layer and its fault tolerance.

Updated operational guidelines with our infrastructure provider to avoid unnecessary manual resets on recovered systems.

Additional diagnostics and hardware-level actions to ensure long-term reliability.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: All applications have been operational again since 11:51, and all pending eSignatures were fully processed by 11:53.

The root cause of the second incident has been clearly identified. One of our datacenter servers experienced a failure. We performed an initial restart, and the datacenter technician - informed of the inaccessibility - initiated a second restart. The sequence of these actions caused a second incident immediately after the first.

All services are now fully operational.

We apologize for the impact this has had on your activity, and we will provide a full description of these events in the upcoming postmortem.

Monitoring: We are continuing to monitor for any further issues.

Monitoring: Our teams have identified the root cause of the issue, and the fix is being applied. All our Applications are available since 11:48 CET.

Please note that the eSignature will still experience some delay while we process the backlog accumulated during the outage. We will keep you updated as soon as everything is fully back to normal.

Investigating: All applications (including API) are currently unavailable since 11:32 CET.

Our teams are actively working on the issue.

We will keep you updated.

Postmortem: Impact and Incident Resolution Report

Dear Yousign users,

On December 4th, 2025 at 12:09 CET, our services experienced delays in signatures.

The resolution required a hardware intervention at 12:46 CET which led to service unavailability.

With the end of the intervention, all services were fully restored at 12:57 CET and delay returned to normal at 13:10 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the incident

A network malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.

The load balancer entered again in a faulty state.

During this period, Yousign applications and API were still available but delaying signatures (including eSeal).

After investigation, the engineering team had to perform hardware intervention on the faulty equipment in order to restore nominal state.

In the mean time, all services were unreachable between 12:46 CET and 12:57 CET.

The engineering team had to reload all network configuration.

All application services were restored at 12:57 CET.

Delay was totally absorbed at 13:10 CET.

It is important to known that the failing load balancer is the same one as in recent incidents.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

An exceptional maintenance is already planned on Monday December 8th for this equipment.

The maintenance is a cornerstone towards increase resilience of all Yousign services.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: All applications have been operational again since 13:15, and all pending eSignatures and eSeal were fully processed by 13:10. All services are now fully operational.

The root cause of the incident has been clearly identified.

We apologize for the impact this has had on your activity, and we will provide a full description of these events in the upcoming postmortem.

Monitoring: eSignature and eSeal are fully back to normal. A Postmortem will be publish soon.

Identified: Applications v2 and v3 are now available. We continue to experience delays in signing.

Identified: The v2 and v3 applications have been unavailable since 12:46. Our teams are currently investigating the issue.

Identified: The issue has been identified and our team is working on a fix. All applications are accessible, however signature processing is still experiencing a delay.

Investigating: We are continuing to investigate this issue.

Investigating: We are seeing a signature delay.

We apologize for any inconvenience.

If you have urgent questions, please contact our support team by sending an email to [email protected]

Postmortem: # Impact and Incident Resolution Report

Dear Yousign users,

On December 2nd, 2025, our services experienced two consecutive incidents impacting access to the Yousign platform and temporarily delaying signature processing.
All services were fully restored at 11:53 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the two incidents

First Incident (10:53 CET → 11:10 CET)

A hardware malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.
The component entered a fault state and shut down, causing a temporary interruption of access to the platform.

It automatically restarted according to its configuration, and all application services were restored at 11:10 CET.

Second Incident (11:32 CET → 11:53 CET)

Immediately after the first recovery, we notified our infrastructure provider.
During the provider's on-site verification of the faulty hardware, a manual reset was triggered on the same component, even though the services had already recovered.

This second reset generated a new interruption between 11:32 CET and 11:45 CET, with signature delays fully resolved at 11:53 CET.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

Execution of an exceptional maintenance operation on Monday, December 8th, contributing to the ongoing reinforcement of our traffic management layer and its fault tolerance.

Updated operational guidelines with our infrastructure provider to avoid unnecessary manual resets on recovered systems.

Additional diagnostics and hardware-level actions to ensure long-term reliability.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: The incident has been resolved and no more delays are observed.

A postmortem will be provided.

Monitoring: We are continuing to monitor for any further issues.

Monitoring: Our teams have identified the root cause of the issue, and the fix is being applied. All our Applications are available since 11:06 CET. Please note that the eSignature will still experience some delay while we process the backlog accumulated during the outage. We will keep you updated as soon as everything is fully back to normal.

Monitoring: The situation is back to normal since 11:06 CET

Identified: Our teams have identified the root cause of the issue, and we are now applying the fix. A return to normal service is expected shortly. We will keep you updated.

Investigating: All applications (including API) are currently unavailable since 10:53 CET. Our teams have identified the root cause of the issue, and we are now applying the fix. A return to normal service is expected shortly. We will keep you updated.

Postmortem: # Impact and Incident Resolution Report

Dear Yousign users,

On December 2nd, 2025, our services experienced two consecutive incidents impacting access to the Yousign platform and temporarily delaying signature processing.
All services were fully restored at 11:53 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the two incidents

First Incident (10:53 CET → 11:10 CET)

A hardware malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.
The component entered a fault state and shut down, causing a temporary interruption of access to the platform.

It automatically restarted according to its configuration, and all application services were restored at 11:10 CET.

Second Incident (11:32 CET → 11:53 CET)

Immediately after the first recovery, we notified our infrastructure provider.
During the provider's on-site verification of the faulty hardware, a manual reset was triggered on the same component, even though the services had already recovered.

This second reset generated a new interruption between 11:32 CET and 11:45 CET, with signature delays fully resolved at 11:53 CET.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

Execution of an exceptional maintenance operation on Monday, December 8th, contributing to the ongoing reinforcement of our traffic management layer and its fault tolerance.

Updated operational guidelines with our infrastructure provider to avoid unnecessary manual resets on recovered systems.

Additional diagnostics and hardware-level actions to ensure long-term reliability.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: All applications have been operational again since 11:51, and all pending eSignatures were fully processed by 11:53.

The root cause of the second incident has been clearly identified. One of our datacenter servers experienced a failure. We performed an initial restart, and the datacenter technician - informed of the inaccessibility - initiated a second restart. The sequence of these actions caused a second incident immediately after the first.

All services are now fully operational.

We apologize for the impact this has had on your activity, and we will provide a full description of these events in the upcoming postmortem.

Monitoring: We are continuing to monitor for any further issues.

Monitoring: Our teams have identified the root cause of the issue, and the fix is being applied. All our Applications are available since 11:48 CET.

Please note that the eSignature will still experience some delay while we process the backlog accumulated during the outage. We will keep you updated as soon as everything is fully back to normal.

Investigating: All applications (including API) are currently unavailable since 11:32 CET.

Our teams are actively working on the issue.

We will keep you updated.

Resolved: This incident has been resolved.

Monitoring: A fix has been implemented and we are monitoring the results.

Identified: The issue has been identified and a fix is being implemented.

Investigating: All applications are currently unavailable since 15:23 CET.

Our teams are actively working on the issue.

Postmortem: Impact and Incident Resolution Report

Dear Yousign users,

On December 4th, 2025 at 12:09 CET, our services experienced delays in signatures.

The resolution required a hardware intervention at 12:46 CET which led to service unavailability.

With the end of the intervention, all services were fully restored at 12:57 CET and delay returned to normal at 13:10 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the incident

A network malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.

The load balancer entered again in a faulty state.

During this period, Yousign applications and API were still available but delaying signatures (including eSeal).

After investigation, the engineering team had to perform hardware intervention on the faulty equipment in order to restore nominal state.

In the mean time, all services were unreachable between 12:46 CET and 12:57 CET.

The engineering team had to reload all network configuration.

All application services were restored at 12:57 CET.

Delay was totally absorbed at 13:10 CET.

It is important to known that the failing load balancer is the same one as in recent incidents.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

An exceptional maintenance is already planned on Monday December 8th for this equipment.

The maintenance is a cornerstone towards increase resilience of all Yousign services.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: All applications have been operational again since 13:15, and all pending eSignatures and eSeal were fully processed by 13:10. All services are now fully operational.

The root cause of the incident has been clearly identified.

We apologize for the impact this has had on your activity, and we will provide a full description of these events in the upcoming postmortem.

Monitoring: eSignature and eSeal are fully back to normal. A Postmortem will be publish soon.

Identified: Applications v2 and v3 are now available. We continue to experience delays in signing.

Identified: The v2 and v3 applications have been unavailable since 12:46. Our teams are currently investigating the issue.

Identified: The issue has been identified and our team is working on a fix. All applications are accessible, however signature processing is still experiencing a delay.

Investigating: We are continuing to investigate this issue.

Investigating: We are seeing a signature delay.

We apologize for any inconvenience.

If you have urgent questions, please contact our support team by sending an email to [email protected]

Postmortem: # Impact and Incident Resolution Report

Dear Yousign users,

On December 2nd, 2025, our services experienced two consecutive incidents impacting access to the Yousign platform and temporarily delaying signature processing.
All services were fully restored at 11:53 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the two incidents

First Incident (10:53 CET → 11:10 CET)

A hardware malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.
The component entered a fault state and shut down, causing a temporary interruption of access to the platform.

It automatically restarted according to its configuration, and all application services were restored at 11:10 CET.

Second Incident (11:32 CET → 11:53 CET)

Immediately after the first recovery, we notified our infrastructure provider.
During the provider's on-site verification of the faulty hardware, a manual reset was triggered on the same component, even though the services had already recovered.

This second reset generated a new interruption between 11:32 CET and 11:45 CET, with signature delays fully resolved at 11:53 CET.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

Execution of an exceptional maintenance operation on Monday, December 8th, contributing to the ongoing reinforcement of our traffic management layer and its fault tolerance.

Updated operational guidelines with our infrastructure provider to avoid unnecessary manual resets on recovered systems.

Additional diagnostics and hardware-level actions to ensure long-term reliability.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: The incident has been resolved and no more delays are observed.

A postmortem will be provided.

Monitoring: We are continuing to monitor for any further issues.

Monitoring: Our teams have identified the root cause of the issue, and the fix is being applied. All our Applications are available since 11:06 CET. Please note that the eSignature will still experience some delay while we process the backlog accumulated during the outage. We will keep you updated as soon as everything is fully back to normal.

Monitoring: The situation is back to normal since 11:06 CET

Identified: Our teams have identified the root cause of the issue, and we are now applying the fix. A return to normal service is expected shortly. We will keep you updated.

Investigating: All applications (including API) are currently unavailable since 10:53 CET. Our teams have identified the root cause of the issue, and we are now applying the fix. A return to normal service is expected shortly. We will keep you updated.

Postmortem: # Impact and Incident Resolution Report

Dear Yousign users,

On December 2nd, 2025, our services experienced two consecutive incidents impacting access to the Yousign platform and temporarily delaying signature processing.
All services were fully restored at 11:53 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the two incidents

First Incident (10:53 CET → 11:10 CET)

A hardware malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.
The component entered a fault state and shut down, causing a temporary interruption of access to the platform.

It automatically restarted according to its configuration, and all application services were restored at 11:10 CET.

Second Incident (11:32 CET → 11:53 CET)

Immediately after the first recovery, we notified our infrastructure provider.
During the provider's on-site verification of the faulty hardware, a manual reset was triggered on the same component, even though the services had already recovered.

This second reset generated a new interruption between 11:32 CET and 11:45 CET, with signature delays fully resolved at 11:53 CET.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

Execution of an exceptional maintenance operation on Monday, December 8th, contributing to the ongoing reinforcement of our traffic management layer and its fault tolerance.

Updated operational guidelines with our infrastructure provider to avoid unnecessary manual resets on recovered systems.

Additional diagnostics and hardware-level actions to ensure long-term reliability.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: All applications have been operational again since 11:51, and all pending eSignatures were fully processed by 11:53.

The root cause of the second incident has been clearly identified. One of our datacenter servers experienced a failure. We performed an initial restart, and the datacenter technician - informed of the inaccessibility - initiated a second restart. The sequence of these actions caused a second incident immediately after the first.

All services are now fully operational.

We apologize for the impact this has had on your activity, and we will provide a full description of these events in the upcoming postmortem.

Monitoring: We are continuing to monitor for any further issues.

Monitoring: Our teams have identified the root cause of the issue, and the fix is being applied. All our Applications are available since 11:48 CET.

Please note that the eSignature will still experience some delay while we process the backlog accumulated during the outage. We will keep you updated as soon as everything is fully back to normal.

Investigating: All applications (including API) are currently unavailable since 11:32 CET.

Our teams are actively working on the issue.

We will keep you updated.

Resolved: This incident has been resolved.

Monitoring: A fix has been implemented and we are monitoring the results.

Identified: The issue has been identified and a fix is being implemented.

Investigating: All applications are currently unavailable since 15:23 CET.

Our teams are actively working on the issue.

Postmortem: Impact and Incident Resolution Report

Dear Yousign users,

On December 4th, 2025 at 12:09 CET, our services experienced delays in signatures.

The resolution required a hardware intervention at 12:46 CET which led to service unavailability.

With the end of the intervention, all services were fully restored at 12:57 CET and delay returned to normal at 13:10 CET.

Below is a detailed explanation of the events and the actions being taken.

Summary of the incident

A network malfunction occurred on one of the components of our load balancing layer, responsible for directing incoming traffic to our application services.

The load balancer entered again in a faulty state.

During this period, Yousign applications and API were still available but delaying signatures (including eSeal).

After investigation, the engineering team had to perform hardware intervention on the faulty equipment in order to restore nominal state.

In the mean time, all services were unreachable between 12:46 CET and 12:57 CET.

The engineering team had to reload all network configuration.

All application services were restored at 12:57 CET.

Delay was totally absorbed at 13:10 CET.

It is important to known that the failing load balancer is the same one as in recent incidents.

Root Cause

A hardware failure on a load balancing component within our datacenter.

Next Actions

An exceptional maintenance is already planned on Monday December 8th for this equipment.

The maintenance is a cornerstone towards increase resilience of all Yousign services.

We sincerely apologize for the impact this incident may have had on your operations.

Thank you for your understanding and continued trust in Yousign.

Resolved: All applications have been operational again since 13:15, and all pending eSignatures and eSeal were fully processed by 13:10. All services are now fully operational.

The root cause of the incident has been clearly identified.

We apologize for the impact this has had on your activity, and we will provide a full description of these events in the upcoming postmortem.

Monitoring: eSignature and eSeal are fully back to normal. A Postmortem will be publish soon.

Identified: Applications v2 and v3 are now available. We continue to experience delays in signing.

Identified: The v2 and v3 applications have been unavailable since 12:46. Our teams are currently investigating the issue.

Identified: The issue has been identified and our team is working on a fix. All applications are accessible, however signature processing is still experiencing a delay.

Investigating: We are continuing to investigate this issue.

Investigating: We are seeing a signature delay.

We apologize for any inconvenience.

If you have urgent questions, please contact our support team by sending an email to [email protected]