KnowBe4 Outage History

105 incidents recorded over the last 365 days, 67 of them resolved. Durations are measured from when PulsAPI first saw the problem to when it cleared, which is usually longer than the vendor's own figure.

Live KnowBe4 status100.00% uptime history

Every Recorded KnowBe4 Incident

KnowBe4 incidents, newest first, with date, duration and status.
DateIncidentDurationStatus
Nov 2, 2026Defend Email Processing DelaysThis incident has been resolved.5h 13mResolved
Oct 31, 2026Defend - Inbound Mail ErrorsThis incident has been resolved.49h 34mResolved
Oct 29, 2026Secure Workspace Scheduled Maintenance (US)Scheduled maintenance is currently in progress. We will provide updates as necessary.2h 0mScheduled
Oct 29, 2026Prevent, Protect, Secure Web Forms, Secure Workspace - Planned Maintenance (US & AU)Scheduled maintenance is currently in progress. We will provide updates as necessary.1h 0mScheduled
Oct 28, 2026Secure Workspace Scheduled Maintenance (UK)The scheduled maintenance has been completed.2h 0mScheduled
Oct 28, 2026Prevent, Protect, Secure Web Forms, Secure Workspace - Planned Maintenance (UK & EU)The scheduled maintenance has been completed.1h 0mScheduled
Oct 22, 2026KSAT - Planned MaintenanceThe scheduled maintenance has been completed.1h 0mScheduled
Oct 21, 2026Secure Workspace Scheduled Maintenance (UK)We will be performing maintenance work on a subset of Secure Workspace instances in the UK South region on October 21st, 2026 from 18:00 - 20:00 UTC. During this maintenance you may experience a service disruption of up…2h 0mScheduled
Oct 20, 2026Prevent - Missing New Domain Registration AdviceFrom Saturday, July 18, 2026, to Friday, October 23, 2026, some customers using the New Domain Registration Advice features in Prevent and Defend received empty or incorrect data for many domains. This issue was caused…75h 18mResolved
Oct 14, 2026KSAT - Planned MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
Oct 13, 2026Console Login Issues## **Summary** On October 13, 2026, from approximately 14:19 to 15:05 \(UTC\), customers in all regions were unable to log in to the KnowBe4 Security Awareness Training \(SAT\) console, the KnowBe4 Learner Experience…1h 12mResolved
Oct 13, 2026Prevent and Protect - Web Add-in Send Issues (EU Only)From Monday, October 12, 2026, at approximately 14:25 \(UTC\), to Tuesday, October 13, 2026, at around 15:07 \(UTC\), some customers in EU instances of Prevent and Protect had difficulty sending emails from Microsoft…4h 54mResolved
Oct 8, 2026Secure Workspace - Planned Maintenance (US)The scheduled maintenance has been completed.2h 0mScheduled
Oct 8, 2026Prevent, Protect, Secure Web Forms, Secure Workspace - Planned Maintenance (AU)The scheduled maintenance has been completed.1h 0mScheduled
Oct 7, 2026Secure Workspace - Planned Maintenance (UK)The scheduled maintenance has been completed.2h 0mScheduled
Oct 7, 2026Prevent, Protect & Secure Web Forms - Planned Maintenance (UK)The scheduled maintenance has been completed.1h 0mScheduled
Oct 7, 2026Secure Workspace - Planned Maintenance (EU)The scheduled maintenance has been completed.1h 0mScheduled
Sep 28, 2026Prevent and Protect Degraded Performance (US Instances)## **Summary** From Monday, September 28, 2026, at approximately 16:00 \(UTC\), to Wednesday, September 30, 2026, at around 12:35 \(UTC\), some customers experienced delayed mail flow and intermittent problems…85h 22mResolved
Sep 24, 2026Protect & Prevent Degraded Performance - US## **Summary** From Thursday, September 24, 2026, at approximately 17:07 \(UTC\), to Friday, September 25, 2026, at around 09:16 \(UTC\), some customers experienced intermittent slowness, errors, and delayed mail flow…15h 23mResolved
Sep 24, 2026Prevent, Protect, Secure Web Forms, Secure Workspace - Planned Maintenance (AU)We will be performing maintenance on the AU region instances of Prevent, Protect, Secure Web Forms, and Secure Workspace on September 24th, 2026, from 8:00 a.m. to 9:00 a.m. (UTC). During this maintenance, users may…1h 0mScheduled
Sep 24, 2026KSAT - Planned MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
Sep 23, 2026Planned Maintenance - Workspace VM Upgrade (UK and EU Instances)The scheduled maintenance has been completed.2h 0mScheduled
Sep 23, 2026Prevent, Protect, Secure Web Forms, Secure Workspace - Planned Maintenance (EU & UK regions)The scheduled maintenance has been completed.1h 0mScheduled
Sep 23, 2026Protect, Prevent, Workspace & Webforms | Intermittent login issues (UK only)This incident has been successfully resolved and all systems are fully operational.5h 5mResolved
Sep 23, 2026Webforms | Partial Submission Issue (UK only)On Wednesday, September 23, 2026, from approximately 08:15 to 11:18 \(UTC\), some customers experienced slowness and failed form submissions in UK instances of Secure Webforms. This issue was caused by database…5h 58mResolved
Sep 21, 2026Protect | Web Access - Error Sending Emails (UK Only)On Monday, September 21, 2026, from approximately 08:55 until Tuesday, September 22, 2026, at approximately 14:30 \(UTC\), some users experienced errors and were unable to send emails via Web Access \(Secure Message…22h 54mResolved
Sep 18, 2026KSAT - Unable to Login (DE and UK Only)## **Summary** On September 17, 2026, a background job archived a large user group and ran as a single unbounded database transaction. This transaction locked a large number of user rows, causing US region logins to…5h 40mResolved
Sep 17, 2026KSAT - Unable to Login (US Only)## **Summary** On September 17, 2026, a background job archived a large user group and ran as a single unbounded database transaction. This transaction locked a large number of user rows, causing US region logins to…18h 3mResolved
Sep 17, 2026Prevent, Protect, Secure Web Forms, Secure Workspace - Planned Maintenance (US & AU regions)The scheduled maintenance has been completed.30 minScheduled
Sep 16, 2026Console Login/Access Issue - (UK Instance)This incident has been resolved.3h 11mResolved
Sep 11, 2026Defend | Emails Not Being Rendered in Classic OutlookOn Septermber 8th we made aware that inbound HTML emails rendered partially or blank in Classic Outlook due to a routine HTML library upgrade in Defend's harmful-code-removal engine interacting with Classic Outlook's…-4663 minResolved
Sep 10, 2026Real-Time Coaching - Planned MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
Sep 4, 2026Workspace | Email MFA Verification IssuesThis incident has been resolved.69h 31mResolved
Sep 3, 2026PhishER - Planned MaintenanceThe scheduled maintenance has been completed.169h 0mScheduled
Aug 27, 2026Secure Workspace Scheduled Maintenance (UK)The scheduled maintenance has been completed.2h 0mScheduled
Aug 26, 2026PhishER - Message Processing Delays## **Summary** During a routine deployment on August 26, 2026, an infrastructure management framework unexpectedly removed both the primary message-processing queues and the secondary queues that hold messages that…3h 31mResolved
Aug 21, 2026PAB | Error Reporting Phish using Gmail Phish Alert ButtonOn Friday, August 21, 2026, from approximately 05:20 to 12:55 \(UTC\), some customers experienced intermittent failures when using the Gmail Phish Alert Button add-in to report suspicious emails, receiving the "An…6h 4mResolved
Aug 18, 2026PAB sending a Non-Delivery Report after an Email is Reported (US Only)On Tuesday, August 18, 2026, from approximately 14:10 to 14:55 \(UTC\), customers using the Phish Alert Button \(PAB\) with the **Send Us a Copy** feature enabled received non-delivery reports for the **Send Us a Copy**…5h 44mResolved
Aug 12, 2026Secure Workspace Scheduled Maintenance (UK, EU & US)The scheduled maintenance has been completed.314h 0mScheduled
Aug 5, 2026Google Workspace PhishRIP errorsUpon further investigation we have determined that the errors affecting Google PhishRIP queries were related to individual issues on Google accounts.26h 26mResolved
Aug 5, 2026Prevent - Planned Maintenance (EU and UK)The scheduled maintenance has been completed.1h 30mScheduled
Aug 4, 2026SAT Account Settings not LoadingOn Tuesday, August 4, 2026, from approximately 18:22 to 19:43 \(UTC\), some customers experienced issues loading the **Account Settings** page in the KnowBe4 console across the CA, DE, EU, UK, and US regions. This…16h 58mResolved
Jul 29, 2026Prevent - Planned MaintenanceThe scheduled maintenance has been completed.1h 30mScheduled
Jul 28, 2026Unexpected Emails being quarantined by PhishRIP## **Summary** On July 28, 2026, an update to the PhishRIP service caused some PhishRIP search queries to match more broadly than they should have. Benign emails that didn't meet the configured sender criteria were…22h 57mResolved
Jul 23, 2026Planned Maintenance - Add Users IndexThe scheduled maintenance has been completed.1h 0mScheduled
Jul 23, 2026Second Chance - Planned MaintenanceThe scheduled maintenance has been completed.1h 0mScheduled
Jul 22, 2026PhishML DegradationAn upstream feature flag service issue degraded model routing in collaboration-inference, causing PhishML evaluations to return 0/0/0 default errors. The third party deployed a fix, and a code update was deployed to…-17671 minResolved
Jul 22, 2026Cutover of the Prevent Production Cluster (AU)The scheduled maintenance has been completed.1h 30mScheduled
Jul 17, 2026Protect blank purchasing page on store.knowbe4.comThis incident has been resolved.1345h 46mResolved
Jul 16, 2026Defend - Redirect Upon LoginOn Thursday, July 16, 2026, from approximately 19:57 to 21:12 \(UTC\), some customers experienced difficulty logging in to the Defend console, seeing a **Find Out More** screen instead of console access. This issue was…1h 32mResolved
Jul 15, 2026Protect blank purchasing page on store.knowbe4.comThis incident has been resolved.21h 17mResolved
Jul 8, 2026Prevent, Protect, Secure Web Forms, Secure Workspace - Planned Maintenance (UK)The scheduled maintenance has been completed.30 minScheduled
Jul 8, 2026KSAT - Server Maintenance (All Instances)The scheduled maintenance has been completed.1h 0mScheduled
Jul 1, 2026KSAT Intermittent Login Issues - US## **Executive Summary** On July 1, 2026, the KnowBe4 Security Awareness Training \(KSAT\) platform experienced a period of degraded performance resulting in intermittent login errors and high latency for users on our…3h 20mResolved
Jun 30, 2026Defend - Increased Email Latency (US Only)#### Summary On June 30, 2026, customers using the Defend US service experienced delays in email processing. The incident began at approximately 14:00 UTC and was fully resolved by 19:45 UTC. ‌ #### What Happened A…3h 31mResolved
Jun 30, 2026PhishML Evaluations Causing PML:BYPASSED Tags to ApplyOn Tuesday, June 30, 2026, from approximately 07:40 to 19:15 \(UTC\), customers experienced incorrect results from PhishER's PhishML scoring. Affected emails received a PML:BYPASSED tag instead of a legitimate PhishML…4h 53mResolved
Jun 26, 2026KSAT Membership Table Maintenance (All Instances)The scheduled maintenance has been completed.1h 0mScheduled
Jun 24, 2026KCM GRC - 500 Errors Upon LoginFrom Tuesday, June 23, 2026, at approximately 10:03 \(UTC\) to Thursday, June 25, 2026, at approximately 11:54 \(UTC\), some US and EU customers experienced intermittent 502 errors when logging in to KCM GRC. This…21h 22mResolved
Jun 18, 2026Phishing test report tab unavailableFrom Tuesday, June 16, 2026, at approximately 17:34 \(UTC\), to Thursday, June 18, 2026, at approximately 22:41 \(UTC\), some customers experienced intermittent unavailability of the **Phishing Security Test Reports**…16h 47mResolved
Jun 18, 2026KnowBe4 Security Center (KSC) | Human Risk Managment Widget Showing No ResultsFrom Wednesday, June 17, 2026, at approximately 19:00 \(UTC\), to Thursday, June 18, 2026, at approximately 18:20 \(UTC\), some customers were unable to view results in the KnowBe4 Security Center’s Human Risk…3h 59mResolved
Jun 16, 2026Data and User Inconsistencies in ReportingFrom Tuesday, June 16, 2026, at approximately 22:23 \(UTC\), to Wednesday, June 17, 2026, at approximately 20:19 \(UTC\), some customers experienced inaccurate user counts in KSAT reporting. Downstream features that…21h 56mResolved
Jun 15, 2026Latency IssuesOn Monday, June 15, 2026, from approximately 15:30 to 16:34 \(UTC\), some customers experienced processing delays with phishing and training campaigns in the KnowBe4 console. This issue was caused by an update that…0 minResolved
Jun 3, 2026Prevent, Protect, Secure Web Forms, Secure Workspace - Planned Maintenance (EU and UK)The scheduled maintenance has been completed.2h 0mScheduled
Jun 3, 2026KSAT - Widespread User Profile Access IssuesOn Wednesday, June 3, 2026, from approximately 14:49 to 16:09 \(UTC\), customers experienced errors when accessing the **User Details** page in the KSAT console. This issue was caused by an update that introduced…3h 7mResolved
May 28, 2026Unable to upload custom content to the new ModstoreOn Thursday, May 28, 2026, from approximately 18:07 to 18:57 \(UTC\), some customers experienced issues uploading custom content to the new ModStore in KnowBe4 Security Awareness Training \(KSAT\). This issue was…55 minResolved
May 28, 2026KSAT MaintenanceThe scheduled maintenance has been completed.2h 0mScheduled
May 27, 2026Protect - Intermittent Issues with Sending Emails (UK Only)On Wednesday, May 27, 2026, from approximately 09:22 to 15:24 \(UTC\), some UK customers experienced intermittent issues with outbound email delivery in Protect. This issue was caused by a configuration change that…5h 38mResolved
May 21, 2026New Modstore 500 Errors# **Summary** On Wednesday, May 21, 2026, customers using the new ModStore experience within KnowBe4 Security Awareness Training \(KSAT\) were unable to access the ModStore and received HTTP 500 errors. The disruption…3h 39mResolved
May 21, 2026Workspace and Webforms Scheduled Maintenance (US)The scheduled maintenance has been completed.2h 0mScheduled
May 20, 2026Secure Workspace and Secure Web Forms scheduled maintenance (EU & UK Only)The scheduled maintenance has been completed.4h 45mScheduled
May 19, 2026Microsoft Ribbon PAB Operation TimeoutFrom Monday, May 18, 2026, at approximately 14:00 \(UTC\), to Tuesday, May 19, 2026, at approximately 15:00 \(UTC\), users experienced timeouts when attempting to use the Microsoft Ribbon Phish Alert Button \(PAB\) in…3h 47mResolved
May 18, 2026KSAT Latency IssuesOur team has identified and resolved the issue causing latency with the KSAT console4h 11mResolved
May 13, 2026KnowBe4 Academy - Access IssuesOn Wednesday, May 13, 2026, from approximately 18:00 until 18:45 \(UTC\), some users experienced issues with accessing the KnowBe4 Academy. This incident was caused by a service disruption with an external service…18h 58mResolved
May 12, 2026Unable to upload items on Workspace - USOn Tuesday, May 12, 2026, from approximately 10:12 until 11:43 \(UTC\), some US customers experienced issues while attempting to upload files or process data within the Workspace console. This incident was caused by a…4h 23mResolved
May 8, 2026PhishER - Unable to Login (US)On Friday, May 8, 2026, from approximately 01:45 to 03:08 \(UTC\), some US customers experienced issues accessing the PhishER console and PasswordIQ. This incident was caused by a localized infrastructure failure at…1h 48mResolved
May 7, 2026KSAT - Planned MaintenanceThe scheduled maintenance has been completed.50 minScheduled
Apr 30, 2026PhishER - Unable to Login (UK)We have identified an issue with customers signing into PhishER in the UK instance and implemented a fix. Customers should be able to login successfully.2h 59mResolved
Apr 29, 2026Secure Workspace Planned Maintenance (UK)The scheduled maintenance has been completed.1h 0mScheduled
Apr 27, 2026ADI Sync and Training Policy Upload Errors (US Only)We have identified an issue with customers pushing ADI files and training policy uploads to KSAT. Our team has implemented a fix and this has now been resolved.3h 39mResolved
Apr 24, 2026PhishER Login Issues (CA Only)This incident has been resolved.62h 34mResolved
Apr 21, 2026Intermittent latency for Protect users - US OnlyFrom Tuesday, April 21, 2026, at approximately 18:21 \(UTC\), to Thursday, April 23, 2026, at approximately 12:12 \(UTC\), some customers experienced intermittent connectivity and slow performance when using the Protect…135h 1mResolved
Apr 20, 2026PhishER Access Issue for UK/CA InstancesOn Monday, April 20, 2026, from approximately 14:00 until 20:00 \(UTC\), some customers experienced "Restricted" errors when attempting to access the PhishER console in our UK and Canada instances. This incident was…3h 31mResolved
Apr 16, 2026KSAT Scheduled MaintenanceThe scheduled maintenance has been completed.1h 0mScheduled
Apr 15, 2026PhishER - Planned Maintenance (all instances)The scheduled maintenance has been completed.2h 0mScheduled
Apr 2, 2026KSAT - Planned MaintenanceThe scheduled maintenance has been completed.1h 30mScheduled
Mar 31, 2026Defend - Sending multiple abuse mailbox submission notificationsOn Tuesday, March 31, 2026, from approximately 15:00 \(UTC\) to 16:10 \(UTC\), some users experienced issues with the Defend Abuse Mailbox service. This incident was caused by a service update that started sending…1h 32mResolved
Mar 19, 2026Prevent and Protect - Administration Panel Slow or InaccessibleOn Thursday, March 19, 2026, from approximately 11:56 \(UTC\) until 13:14 \(UTC\), some UK users experienced intermittent issues while attempting to log in to Prevent and Protect consoles. This incident was caused by a…23h 44mResolved
Mar 18, 2026Webforms not loadingFrom Tuesday, March 17, 2026, at approximately 16:00 \(UTC\), to Wednesday, March 18, 2026, at approximately 13:00 \(UTC\), some users experienced errors while submitting Workspace webforms. This incident was caused by…3h 54mResolved
Mar 10, 2026PhishER Showing Incorrect Subject Line for Inbox MessagesOn Tuesday, March 10, 2026, from approximately 15:22 until 20:35 \(UTC\), the EU and US instances of the PhishER console displayed an incorrect subject line for some messages reported with the Phish Alert Button…4h 43mResolved
Mar 10, 2026Webform submission failures (UK & EMEA)From Monday, March 9, 2026, at approximately 19:00 \(UTC\) until Tuesday, March 10, 2026, at approximately 17:00 \(UTC\), a subset of Workspace customers experienced Secure Webform submission failures. This incident…34h 47mResolved
Mar 5, 2026Defend and Prevent Admin Console Certificate IssueOn Thursday, March 5, 2026, from approximately 02:20 until 03:10 \(UTC\), some customers experienced expired SSL certificate warnings when accessing their Defend and Prevent admin consoles. This incident was caused by…10h 8mResolved
Feb 10, 2026EU PhishER Integration DelayOn Tuesday, February 10, 2026, from approximately 13:57 to 16:01 \(UTC\), some users experienced delays with the integration service on the EU instance of the PhishER console. This incident was caused by a system…1h 46mResolved
Feb 10, 2026Workspace degraded performanceOn Tuesday, February 10, 2026, customers in the UK region began experiencing upload delays with Workspace at approximately 11:01 \(UTC\), due to instability within a messaging node. The node was isolated at 12:20…25h 42mResolved
Feb 4, 2026Delayed inbound email delivery - US OnlyOn Wednesday, February 4, 2026, from approximately 15:30 to 16:00 \(UTC\), some US users experienced email delivery delays in the Defend product.  This issue was caused by a brief networking fluctuation, resulting in…6h 42mResolved
Jan 27, 2026KSAT - Library Tab not Loading in Learner ExperienceOn Tuesday, January 27, 2026, from approximately 14:46 \(UTC\) to 16:22 \(UTC\), some users experienced issues with loading the **Library** tab of the Learner Experience \(LX\).  This incident was caused when an update…1h 43mResolved
Jan 22, 2026Multiple outages due to Microsoft 365 incidentOn January 22, 2026, from approximately 19:30 \(UTC\) to January 23, 2026, at approximately 05:00 \(UTC\), a significant service disruption in Microsoft’s North American infrastructure triggered a series of service…16h 11mResolved
Jan 21, 2026Delayed Email Delivery (UK)On Wednesday, January 21, 2026, from approximately 14:59 to Thursday, January 22, 2026, at approximately 10:11 \(UTC\), some customers experienced delays with outbound email delivery for UK instances of Prevent, Defend…17h 47mResolved
Dec 29, 2025Delayed Webform SubmissionsThis incident has been resolved.1h 33mResolved
Dec 23, 2025Delayed Webform SubmissionsOn Tuesday, December 23, 2026, from approximately 18:54 to 19:33 \(UTC\), some customers experienced delays with their web form submissions. This issue was caused by unexpected processing delays in the network nodes…24h 44mResolved
Dec 22, 2025KSAT - 500 error when logging inOn Monday, December 22, 2025, from approximately 16:12 to 16:50  \(UTC\), some customers experienced errors when attempting to log in and log out across the KSAT console.  This issue was caused by a cryptography…44 minResolved
Dec 15, 2025Users Lists Not PopulatingOn Monday, December 15, 2025, from approximately 18:39 to 19:32 \(UTC\), customers were unable to load user data across all regions of the KSAT console.  This issue was immediately identified by our monitoring systems…19h 5mResolved
Dec 15, 2025Multiple Products Intermittently Unavailable Due to Azure Front Door Outage (UK Only)The Azure Front Door issue is no longer impacting services. This incident is now resolved.2h 43mResolved
Dec 11, 2025Multiple Products Intermittently Unavailable Due to Azure Front Door Outage (UK Only)This incident has been resolved.7h 7mResolved
Dec 4, 2025KSAT - Saved Reports Tab Not LoadingThis incident has been resolved.19h 44mResolved
Dec 2, 2025KSAT Training Login IssuesOn December 2, 2025, from approximately 16:30 to 17:00 \(UTC\), some customers experienced issues with using login links in training notifications. This issue was caused by a code deployment for the KSAT login page…19h 24mResolved

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How to Read This KnowBe4 Incident Log

Each row is an incident PulsAPI observed, not a summary written afterwards. The duration is wall-clock time between the first failing check and the first clean one, so it includes the window before KnowBe4 acknowledged anything. Vendor post-mortems typically measure from acknowledgement, which is why their numbers are usually shorter.

Incidents still open have no duration yet and are listed as ongoing rather than being given a running total. The archive covers the last 365 days; anything older has aged out of the window rather than never having happened.

The longest single KnowBe4 outage in this window ran 56d 1h, against a mean recovery of 1d 4h. If you depend on KnowBe4 in a customer-facing path, the longest figure is the one to design around. The mean is what happens on a normal bad day; the maximum is what happens on the worst one.