My investigation is most likely tied to an older protonmail which was connected to a gmail(which was/is under investigation of fbi, I kid you not, EU is obligated to inform you if a foreign entity is accessing your account).Has anyone of you been to Switzerland after getting such an email?
I've been to Germany(German police does cooperate with Swiss) months after receiving that notification from protonmail and it was all fine.
I think it's because I posted my email on the AlphaBay darkweb site(this site was seized by fbi). I was selling nude fakes back then, but nothing under 18. I felt cocky as I was not planning or doing anything illegal by making fakes of adults.