GPG

GPG is the free software implementation of the OpenPGP standard. It encrypts and signs email, files, and software packages, and it is the tool behind signed Git commits and Linux distribution package verification. It is the de facto way most people use OpenPGP today.

• Proton Mail → Encrypted email from Switzerland with PGP built in, no key wrangling required. End-to-end encryption only applies Proton-to-Proton or with PGP contacts; mail to ordinary inboxes travels like ordinary email.

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