ProtonMail voluntarily offers Assistance for Real-Time Surveillance May 23, 2019 https://steigerlegal.ch/2019/05/23/protonmail-real-time-surveillance/
Response to false statements on surveillance made by Martin Steiger May 29, 2019 https://protonmail.com/blog/martin-steiger-false-statements/
https://steigerlegal.ch/2019/05/23/protonmail-real-time-surveillance/ 'ProtonMail was founded by CERN employees in the Canton of Geneva' ~ op cit All those boffins and it still has bugs lol.
That's a subtle distinction. I mean, Sigaint wasn't obligated to follow any laws, given that they were anonymous. Until they were found and busted, anyway. Sure, but the US kills people based on metadata, so ...
Reminding casual readers that its quite simple to enter and leave Protonmail without ANY metadata crumbs. PM has a great onion url and for those without TOR at least use a few VPNs. Fundamentally you can get in and out without ever touching clearnet after leaving your computer.