GNU Privacy Guard (GnuPG)

GNU Privacy Guard (GnuPG or GPG) is a free software tool that helps keep your digital communications private and secure. It allows you to encrypt your emails and files so that only intended recipients can read them. GnuPG also enables digital signing, which verifies the sender’s identity and ensures the message hasn’t been altered. It uses complex cryptographic algorithms but is designed to be user-driven with command-line interfaces or integrations into other applications. Essentially, GnuPG helps protect your data from unauthorized access and confirms the authenticity of electronic communications.