Proton Mail is not vulnerable to the recently announced Linux TCP Vulnerability.
Earlier this week, a serious Linux TCP Vulnerability was disclosed by
researchers.
As of 12:30PM Geneva time, Proton Mail iOS and Android apps are available
worldwide. Proton Mail is officially out of beta now and we are allowing open
signups.
For the first time, you can now use your own domain name with Proton Mail. This
means emails sent to/from [email protected] can go through Proton Mail and
benefit from end-to-end encryption.