VeraCrypt
Disk encryption with strong security based on TrueCrypt
...It is used to create encrypted file containers, encrypt partitions, and protect storage devices so data remains unreadable without the correct credentials. The project supports multiple desktop platforms and includes source code, documentation, build instructions, translations, tests, and packaging workflows. VeraCrypt is known for strong encryption, on-the-fly access to mounted volumes, and support for hidden volumes that can help with plausible deniability in specific threat models. It also provides graphical and text-based usage options, making it useful for both everyday users and more technical environments. ...