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Reviewing and Updating XDR Suppression Rules
Background In 2024, we introduced the Accepted Behavior feature to our XDR products, which introduced Suppression Rules. Suppression rules help reduce noise by automatically closing detections that are known to be acceptable. However, to avoid creating blind spots, it’s important to routinely review older rules, confirm…
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Removing the Detection and Response report view (Reports tab)
We previously announced that we were disabling report generation for the Detection and Response view in the Reports tab. The next step is the removal of the view completely. This change is expected to take place in production on June 1st 2026. We recommend using the My Reports tab to create and manage your reports going…
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TLS certificate provider update for GUTS2 backend (May 19, 2026)
We would like to inform you about an upcoming change to the TLS certificates used by the WithSecure GUTS2 Server (definition update backend), planned for May 19, 2026. We are transitioning from DigiCert to Let’s Encrypt certificates. This update aligns our backend infrastructure with our existing services, where Let’s…
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Major Capricorn update for Endpoint Protection - May 2026
UPDATE 2026-05-13: This has now been released to production with version "2026-05-13_01" We will soon be releasing a major update for our Capricorn engine, used by our Endpoint Protection products. This is expected to be released on May 12th 2026. This will result in a larger download as an updated version of the virus…
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Windows ARM64: Response Actions Support Now Available
We are pleased to announce that response actions are now supported on Windows ARM64 systems. Windows ARM64 support has already been available for the Endpoint Protection Platform (EPP) and the EDR sensor. With this update, response capabilities are extended to Windows ARM64 endpoints, completing functional parity with…
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What's New in Elements - March 2026
Extended Detection and Response Endpoint Protection WithSecure Agent for Mac An update to WithSecure Elements Agent for macOS has been released to General Availability on 17th of March 2026. This release brings Performance improvements in wsagent New response version with python 3.12 Client side support for software…
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CVE-2026-40175 for Axios JavaScript library
What is Axios? Axios is a JavaScript library intended to ease interaction with internet HTTP services. It is used by some organizations to simplify their codebase compared to using standard browser functionality. What is the vulnerability? Prior to version 1.15.0, the Axios library is vulnerable to a specific "Gadget"…
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WithSecure Ultralight Core Update
This notice relates to an upcoming release of Ultralight core that is expected to go to GA production on Thursday the 16th of April 2026. During deployment, the update process may take slightly longer than usual, and in some cases the end-user might see a warning pop-up notification momentarily while the update is in…
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Composite rule support for Outbreak Rules
We are now adding support for composite rules to the existing Outbreak Rules functionality, along with new conditions. These will allow for an outbreak rule to apply when two or more conditions are met, rather than a single condition in isolation. We expect this functionality to be available for all customers…
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Detection & Response Report generation to be disabled
As part of our unification process for WithSecure Elements, we will be disabling the generation of new reports for the Detection & Response Reports view on the 20th April 2026. The existing reports will still be available to download. The Detection & Response Reports view is deprecated, and we recommend using the My report…