bitdefender.com January 30, 2020 ProtonMail and StartMail blocked as Russia hunts for bomb threat spammers
bitdefender.com September 7, 2018 Teenage hacker admits making hoax bomb threats against schools and airlines
October 27, 2016 Conspiracy or cockup? Google hid ProtonMail’s encrypted email service from search results
bitdefender.com November 5, 2015 ProtonMail hit by mystery DDoS attack, preventing customers from accessing their secure email
