"In June 2022, the Sonar Research team discovered critical code vulnerabilities in multiple encrypted email solutions, including Proton Mail, Skiff, and Tutanota."

https://www.sonarsource.com/blog/code-vulnerabilities-leak-emails-in-proton-mail/

https://useplaintext.email/ looks even more appealing

#security #infosec #email #proton #tutanova