Analysis of spam and virus filter logs showed no evidence of the exploit being used in the wild by malicious actors.
The vulnerability was strictly limited to the web interface; non-web Proton Mail apps (iOS/Android) were never affected. Protecting Your Data Proton Exploit
Proton maintained its commitment to security through its Responsible Vulnerability Disclosure Policy . Analysis of spam and virus filter logs showed
Add details about other recent fixes (like the patch). Include SEO keywords tailored for cybersecurity audiences. Proton Mail's responsible vulnerability disclosure policy Add details about other recent fixes (like the patch)
This incident serves as a reminder that no system is 100% secure, but active collaboration with the security community—often incentivized by Proton's Bug Bounty Program —is essential for maintaining privacy. To stay secure, users should:
After researchers disclosed the bug in June 2022, Proton developed and deployed a fix by early July 2022.