Important security fixes: The vulnerabilities described below were identified during an external security audit by Radically Open Security and disclosed responsibly to our team. We are not aware of these attacks being used against Tails users until now.

These vulnerabilities can only be exploited by a powerful attacker who has already exploited another vulnerability to take control of an application in Tails.

Prevent an attacker from monitoring Tor circuits. (#20733 and #20744)

In Tails 6.11 or earlier, an attacker who has already taken control of an application in Tails could then exploit vulnerabilities in Onion Circuits and our Tor Browser wrapper that might lead to deanonymization.

Prevent an attacker from changing the Persistent Storage settings. (#20745)

Changes and updates: Add a button to check for upgrades from the About Tails utility. Add the keyboard shortcut Ctrl+Alt+T to open a Terminal. Update Tor Browser to 14.0.5. Update Thunderbird to 128.6.0esr.