Protonmail has been under a massive DDoS attack that has taken its services offline for over 36 hours and counting. It has emphasized that all data is "safe and untouched" but it is seeking outside assistance to mitigate the attack and looking for other datacenters in Switzerland "brave enough" to host its servers. Protonmail's twitter page is the source of updates:
https://twitter.com/ProtonMail

https://twitter.com/ProtonMail

