Current answer
Chainalysis experienced a major incident: Security-related maintenance work. The provider currently marks this incident Investigating.
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Incident Lifecycle
Affected Components
KYT API
Reactor
Hexagate
KYT UI
Address Screening
Rapid Lookup
Sentinel
Incident Timeline
Investigating
Reactor users should be aware of a new, secure login experience.
If you’re connecting from outside an approved network, you’ll now be able to sign in using email verification. Users will see two login prompts with this experience (once to pass the network gate, and again to log into Chainalysis products). We hope that this makes access to Reactor easier while continuing to ensure the highest level of protection for your information. See this document for more information: https://developers.chainalysis.com/resources/docs/reactor-email-verification/overview
We are still working to bring all products back to availability for our users including Rapid and Academy, which remain unavailable at this time.
We continue to sincerely appreciate everyone's patience and will provide more updates as they become available.
If you’re connecting from outside an approved network, you’ll now be able to sign in using email verification. Users will see two login prompts with this experience (once to pass the network gate, and again to log into Chainalysis products). We hope that this makes access to Reactor easier while continuing to ensure the highest level of protection for your information. See this document for more information: https://developers.chainalysis.com/resources/docs/reactor-email-verification/overview
We are still working to bring all products back to availability for our users including Rapid and Academy, which remain unavailable at this time.
We continue to sincerely appreciate everyone's patience and will provide more updates as they become available.
Nov 14, 2026 at 11:59 AM UTC
Investigating
We continue to work on bringing all products back to availability for our users including Rapid and Academy, which remain unavailable at this time.
We continue to sincerely appreciate everyone's patience and will provide more updates as they become available.
We continue to sincerely appreciate everyone's patience and will provide more updates as they become available.
Nov 12, 2026 at 12:03 PM UTC
Investigating
We have reactivated access for iAPI and continue to work to bring all products back to availability for our users including Rapid and Academy, which remain unavailable at this time.
Please continue to monitor this page for ongoing updates. Thank you
Please continue to monitor this page for ongoing updates. Thank you
Nov 11, 2026 at 11:50 PM UTC
Investigating
We continue to make progress on returning all systems to standard operations, including our Knowledge Base and Academy, which remain unavailable at this time.
We continue to sincerely appreciate everyone's patience and will provide more updates as they become available.
We continue to sincerely appreciate everyone's patience and will provide more updates as they become available.
Nov 11, 2026 at 3:38 PM UTC
Investigating
The Customer Admin Portal is back to operational for org admins.
We continue to make progress on returning all systems to standard operations, including our Knowledge Base and Academy, which remain unavailable at this time.
We continue to sincerely appreciate everyone's patience and will provide more updates as they become available.
We continue to make progress on returning all systems to standard operations, including our Knowledge Base and Academy, which remain unavailable at this time.
We continue to sincerely appreciate everyone's patience and will provide more updates as they become available.
Nov 11, 2026 at 2:14 AM UTC
Investigating
Data Solutions is back to operational for users.
We continue to make progress on returning all systems to standard operations, including our Admin Panel and Academy, which remain unavailable at this time.
We continue to sincerely appreciate everyone's patience and will provide more updates as they become available.
We continue to make progress on returning all systems to standard operations, including our Admin Panel and Academy, which remain unavailable at this time.
We continue to sincerely appreciate everyone's patience and will provide more updates as they become available.
Nov 10, 2026 at 1:07 PM UTC
Investigating
We’re continue to make progress bringing all systems back online for our customers. As users begin to access our login page, please follow this helpful resource for instructions to reset your password and generate new API keys: https://www.chainalysis.com/key-rotation/
As many of our Organization Administrators regain access, please be aware that our Customer Admin Portal is still unavailable. We understand the value that this tool brings to your organization and are working quickly to bring it back for you.
Our Training Academy also remains unavailable.
We will continue to provide updates as new information becomes available.
As many of our Organization Administrators regain access, please be aware that our Customer Admin Portal is still unavailable. We understand the value that this tool brings to your organization and are working quickly to bring it back for you.
Our Training Academy also remains unavailable.
We will continue to provide updates as new information becomes available.
Nov 8, 2026 at 10:19 PM UTC
Investigating
We’re continuing the work needed to return all products to typical operation as quickly as possible, and we’ll provide regular updates throughout as progress continues. We appreciate your patience as we continue to work through this.
Nov 8, 2026 at 11:32 AM UTC
Investigating
We’re also continuing the work needed to return all products to typical operation as quickly as possible, and we’ll provide regular updates throughout as progress continues. We appreciate your patience as we continue to work through this.
Nov 8, 2026 at 3:15 AM UTC
Investigating
Reactor, KYT (UI and API), and Address Screening are now back online. We’ve restored these products with enhanced security measures and are continuing to bring customers back onto KYT and Address Screening.
We’re also continuing the work needed to return all products to typical operation as quickly as possible. We know this week has been difficult, and we appreciate your patience. We’ll provide regular updates throughout as progress continues.
We’re also continuing the work needed to return all products to typical operation as quickly as possible. We know this week has been difficult, and we appreciate your patience. We’ll provide regular updates throughout as progress continues.
Nov 7, 2026 at 7:31 PM UTC
Investigating
We are still actively bringing customers onto KYT and address screening and are also continuing the work for all products to return back to typical operation as quickly as possible.
We continue to appreciate your patience and will provide regular updates throughout the weekend as progress continues.
We continue to appreciate your patience and will provide regular updates throughout the weekend as progress continues.
Nov 7, 2026 at 3:07 PM UTC
Investigating
We are still actively bringing customers onto KYT and address screening and are also continuing the work for all products to return back to typical operation as quickly as possible.
We continue to appreciate your patience and will provide regular updates throughout the weekend as progress continues.
We continue to appreciate your patience and will provide regular updates throughout the weekend as progress continues.
Nov 7, 2026 at 12:00 PM UTC
Investigating
We are still actively bringing customers onto KYT and address screening and are also continuing the work for all products to return back to typical operation as quickly as possible.
We continue to appreciate your patience and will provide regular updates throughout the weekend as progress continues.
We continue to appreciate your patience and will provide regular updates throughout the weekend as progress continues.
Nov 7, 2026 at 8:57 AM UTC
Investigating
We are still actively bringing customers onto KYT and address screening and are also continuing the work for all products to return back to typical operation as quickly as possible.
We continue to appreciate your patience and will provide regular updates throughout the weekend as progress continues.
We continue to appreciate your patience and will provide regular updates throughout the weekend as progress continues.
Nov 7, 2026 at 3:19 AM UTC
Investigating
We are still actively bringing customers onto KYT and address screening.
We continue to appreciate your patience during this process. We will provide regular updates throughout the day as this process continues until it is completed.
We continue to appreciate your patience during this process. We will provide regular updates throughout the day as this process continues until it is completed.
Nov 7, 2026 at 12:19 AM UTC
Investigating
We are still actively bringing customers onto KYT and address screening.
We continue to appreciate your patience during this process. We will provide regular updates throughout the day as this process continues until it is completed.
We continue to appreciate your patience during this process. We will provide regular updates throughout the day as this process continues until it is completed.
Nov 6, 2026 at 9:02 PM UTC
Investigating
We are continuing to bring customers onto KYT and address screening and will continue to provide regular updates throughout the day as more information becomes available.
Nov 6, 2026 at 6:48 PM UTC
Investigating
We are continuing to bring customers onto KYT and address screening. This is an active process and we continue to make great progress.
We continue to appreciate your patience during this process. We will provide regular updates throughout the day as more information becomes available.
Thank you
We continue to appreciate your patience during this process. We will provide regular updates throughout the day as more information becomes available.
Thank you
Nov 6, 2026 at 4:01 PM UTC
Investigating
We have started phasing customers back onto KYT and address screening.
As we do this, we are continuing our efforts to restore all systems to operation. We will provide status updates at regular intervals and as new information becomes available.
For more details about the incident and maintenance, please refer to our latest blog post: https://www.chainalysis.com/blog/security-incident-october-30/
As we do this, we are continuing our efforts to restore all systems to operation. We will provide status updates at regular intervals and as new information becomes available.
For more details about the incident and maintenance, please refer to our latest blog post: https://www.chainalysis.com/blog/security-incident-october-30/
Nov 6, 2026 at 12:10 PM UTC
Investigating
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 6, 2026 at 9:44 AM UTC
Investigating
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 6, 2026 at 6:41 AM UTC
Investigating
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 6, 2026 at 3:04 AM UTC
Investigating
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 5, 2026 at 11:56 PM UTC
Investigating
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 5, 2026 at 8:38 PM UTC
Investigating
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 5, 2026 at 5:09 PM UTC
Investigating
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 5, 2026 at 11:47 AM UTC
Investigating
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 5, 2026 at 9:21 AM UTC
Investigating
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 5, 2026 at 4:12 AM UTC
Investigating
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 5, 2026 at 12:17 AM UTC
Investigating
The Hexagate API, GateSigner, and Frontend are now available. Out of an abundance of caution, all customer API keys have been invalidated and will need to be rotated via the Hexagate UI. This is a precautionary measure and there is no evidence that API keys were exposed. Logging into Hexagate via app.chainalysis.com has been disabled. Logging into Hexagate via app.hexagate.com is still working as expected.
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available
Nov 4, 2026 at 5:35 PM UTC
Investigating
Due to ongoing precautionary security-related maintenance, users currently do not have access to our Hexagate product. Users currently do not have access to the Hexagate frontend, the API, and GateSigner. Monitoring and alert delivery is still operating as normal.
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available
Nov 4, 2026 at 4:51 PM UTC
Investigating
We have been actively monitoring our transaction screening products for suspicious activity. Due to abnormal activity, we have taken KYT (the user interface and API) offline alongside other address screening products and the login page. Reactor, Data Solutions, and Chain (Beta) are still offline while our team completes critical work. We are working to bring all of our products online as soon as possible.
Nov 4, 2026 at 3:22 PM UTC
Investigating
Due to ongoing security-related maintenance, users currently do not have access to KYT and Address Screening.
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available
Nov 4, 2026 at 3:10 PM UTC
Investigating
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available. Due to this security-related maintenance, access to our Knowledge Base is also impacted.
Nov 4, 2026 at 12:03 PM UTC
Investigating
As part of our ongoing security-related maintenance, access to our Knowledge Base is also impacted.
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 4, 2026 at 8:28 AM UTC
Investigating
Our security-related maintenance is still in progress as we continue working to restore all systems to normal operation. We will provide further updates at regular intervals and as new information becomes available.
Nov 4, 2026 at 6:04 AM UTC
Investigating
Our security-related maintenance remains ongoing as we continue working to restore all systems to normal operation. We will provide further updates at regular intervals and as new information becomes available.
Nov 4, 2026 at 2:17 AM UTC
Investigating
The previously affected functionality in the Customer Admin Portal has been restored.
Our security-related maintenance remains ongoing as we continue working to restore all systems to normal operation. We will provide further updates at regular intervals and as new information becomes available.
Our security-related maintenance remains ongoing as we continue working to restore all systems to normal operation. We will provide further updates at regular intervals and as new information becomes available.
Nov 3, 2026 at 11:05 PM UTC
Investigating
As part of our ongoing security-related maintenance, some functionality in the Customer Admin Portal may be temporarily unavailable.
We are continuing our work to restore all systems to normal operation and will provide further updates at regular intervals and as new information becomes available.
We are continuing our work to restore all systems to normal operation and will provide further updates at regular intervals and as new information becomes available.
Nov 3, 2026 at 7:56 PM UTC
Investigating
As part of our security-related maintenance work, our Academy training platform may be inaccessible to users. If any customers are impacted, particularly those undertaking certifications or exams, please rest reassured that we will provide additional time or extend exam deadlines as appropriate
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 3, 2026 at 5:00 PM UTC
Investigating
As part of our security-related maintenance work, our Academy training platform may be inaccessible to users. We are continuing our work to bring all systems back to operational and will continue to provide status updates at regular intervals and as new information becomes available.
Nov 3, 2026 at 2:30 PM UTC
Investigating
Security maintenance is ongoing. We’ll continue to share regular updates, with the next one expected within the next few hours.
Nov 3, 2026 at 12:32 PM UTC
Investigating
Our security-related maintenance is still in progress. We will continue to provide regular updates, with the next update expected within a few hours.
Nov 3, 2026 at 8:55 AM UTC
Investigating
Our security-related maintenance is still in progress. For more details on the incident and maintenance, please refer to: https://www.chainalysis.com/blog/security-incident-october-30/
We'll continue to provide updates in the next few hours as they become available.
We'll continue to provide updates in the next few hours as they become available.
Nov 3, 2026 at 4:10 AM UTC
Investigating
Our security-related maintenance is still in progress. We will continue to provide regular updates, with the next update expected within a few hours.
Nov 3, 2026 at 2:15 AM UTC
Investigating
Our security-related maintenance is still in progress. We will continue to provide regular updates, with the next update expected within a few hours.
Nov 2, 2026 at 11:40 PM UTC
Investigating
Our security-related maintenance work is still ongoing. We will continue to provide regular status updates while this work is ongoing.
Nov 2, 2026 at 8:53 PM UTC
Investigating
As part of our security-related maintenance work, Reactor remains temporarily unavailable. Data Solutions, Chain (Beta), and Rapid are also now temporarily unavailable while the team completes this work. Some Hexagate monitoring capabilities may be affected. We will keep our customers updated at least every hour.
Nov 2, 2026 at 7:43 PM UTC
Investigating
Our security-related maintenance work is ongoing. We will continue to provide regular status updates every 1 hour while this work is ongoing.
Nov 2, 2026 at 6:29 PM UTC
Investigating
Our team is continuing to perform critical security-related maintenance work and Reactor may continue to be unavailable during this work. Users may also experience issues logging in during this time.
We will provide our next update within the hour or as more information becomes available.
We will provide our next update within the hour or as more information becomes available.
Nov 2, 2026 at 5:26 PM UTC
Investigating
As part of our security-related maintenance, Reactor is currently unavailable while the team completes critical work. Our transaction monitoring products, KYT and Address Screening, are running as usual with the exception of Graph preview in KYT and KYT’s integration with Reactor. The Chainalysis team will be in touch with more information.
Nov 2, 2026 at 3:50 PM UTC
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