proton.me/legal/law-enforcement
Here the mention clearly the data mentioned in the privacy policy which in turns clearly states that you MAY provide a recovery account which will be associated with your account. I also think that anybody that should be concerned for this should understand that law enforcement can get ALL the data the company has on you.
nous@programming.dev 6 months ago
They do mention it on that page:
The only ever claim to encrypt message contents and attachments. And explicitly call out account meta data here as something they can hand over if requested by law enforcment.