Countercept Agent for macOS 25.2 has been released to general availability (GA) on 26th of November 2025.

Release contents:

• Updated sensor with new detection capabilities
• Refreshed product icons (macOS 26 compatible)
• Discontinued support for macOS 13

Installer can be downloaded from

https://download.withsecure.com/countercept/macos/latest/WithSecure-Countercept-Agent-54880.pkg

Countercept Agent for macOS 25.2 pilot release

Countercept Agent for macOS 25.2 has been released to our pilot customers on 19th of November 2025.

Release contents:

• Updated sensor with new detection capabilities
• Refreshed product icons (macOS 26 compatible)
• Discontinued support for macOS 13

Installer can be downloaded from

https://download.withsecure.com/countercept/macos/latest/WithSecure-Countercept-Agent-54880.pkg

This is a pre-announcement of Countercept Agent for macOS 25.2 which will be released to our pilot customers on 19th of November 2025.

Release contents:

• Updated sensor with new detection capabilities
• Refreshed product icons (macOS 26 compatible)
• Discontinued support for macOS 13

Countercept agent for macOS v25.1 & macOS 26 (Tahoe) support

We’re happy to announce that Countercept agent for macOS v25.1 supports macOS 26 (Tahoe).

Countercept agent for macOS v25.1 will be released to general availability (GA) on the 23rd of June 2025.

This is a notification that the update to the Countercept agent for macOS planned for a General Availability release on the 9th of June 2025 has been postponed. The update went to Pilot group endpoints on the 2nd of June 2025. Events received from the Pilot group identified the need to adjust sensor side filtering rules before going to General Availability.
The update includes general maintenance for various Mac Agent components.

We will advise on the release schedule for the new update shortly. As always, please don’t hesitate to contact us if you have any questions.

Countercept Agent for macOS 25.1 pilot release

Countercept Agent for macOS 25.1 has been released to our pilot customers on 2nd of June.

Release contents:

• Pre-Ventura code has been removed
• New sensor (2025.1.198.0) and response (25.15) versions
• The product no longer ships with initial SensorDB. As a result, sensor process will only start once the sensor database becomes available (affects initial installation cases).
• Fixes an issue when response would get stuck in case pinned-certificate get new context
• Removes unused OPSWAT SDK from MDR product

Installer can be downloaded from

https://download.withsecure.com/countercept/macos/latest/WithSecure-Countercept-Agent-54383.pkg