VeraCrypt
VeraCrypt is a free open source encryption program developed by IDRIX, based on TrueCrypt, and first released on 2013-06-22 and is built for Linux, Macintosh, Windows, and a couple other OSes. VeraCrypt can create encrypted storage areas where you can safely store sensitive files, encrypt drive partitions, and even entire drives. It supports the following encryption ciphers: AES, Serpent, Twofish, Camellia, and Kuznyechik, and can combine them for added security. It also supports the following cryptographic hash functions: RIPEMD-160, SHA-256, SHA-512, Streebog, and Whirlpool.
VeraCrypt was forked from TrueCrypt after it was abandoned, and has seen regular updates since. VeraCrypt can open TrueCrypt files, but it uses a new format to address potential flaws in TrueCrypt's design, so it can't save to them. Thankfully, it comes with a converter that can convert TrueCrypt formatted files to VeraCrypt.
Personal
I used to use TrueCrypt for keeping all my banking, government, and password files encrypted, but, after it was abandoned, I switched to VeraCrypt.
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