Comment by vabmit

The problem with ProtonMail is that their business model and brand are based on being domiciled in Switzerland and operating under Swiss law. Their datacenter threatened them if they didn't pay the attackers and no other datacenter in Switzerland was willing to take them. They tweeted out for help finding one after everyone with sufficient bandwidth to withstand the attacks rejected them: https://twitter.com/ProtonMail/status/662212032368889856 Eventually, one came forward. But, the ransom had already been paid at that point.