Updated 10:54 a.m. Eastern on October 2, 2026
Proton says it is investigating an incident in which some MacOS users may see errors stating that the Proton Mail and Proton Meet apps are qualified as malware. Proton says this is an error and that it is working with Apple to restore functionality.
What is affected
The incident affects the Proton Mail and Proton Meet apps on MacOS, where some users may see errors stating the apps are qualified as malware.
Official update timeline
Some users on MacOS may be seeing errors stating that our Proton Mail & Proton Meet apps are qualified as malware. This is an error, there is no actual malware threat, and we're working together with Apple to restore functionality for our MacOS users. For context, earlier today one of our developer accounts with Apple was revoked for unknown reasons, causing previously legitimate apps to be blocked at the operating system level on MacOS. In the meantime, we recommend using the webapps. Apologies for the disruptions caused by this, we will communicate further once we have more information and updates.
