Before my arrest (CFAA) I operated on Tor and PGP for years. I had property seized and I had a long look at my discovery material, as I was curious which elements they had obtained.

I never saw a single speck of anything I ever sent to anyone via PGP in there. They had access to my SIGAINT e-mail and my BitMessage unlocked, but I used PGP for everything on top of that.

Stay safe!

if you sign PGP messages with a key you associated with your identity, the have high confidence you sent emails signed with that key. i.e. - PGP does not offer group deniable signatures as a default option.

Would be curious to know (if you're willing to share) how you were found if you were working to obscure / encrypt your communications. What _was_ it that ultimately gave you away or allowed them to ID you?