Advanced Encryption Security (AES) 256-bit encryption is virtually impenetrable using standard computing technology. AES is a symmetric key cipher that uses 128-bit data blocks that would take a hacker billions of years of computing power to crack.
For example, you would need to check 2256 different combinations to verify the key that matches both the encryption and decryption. That’s an astronomically large 78 digit number.
It was initially created for federal government purposes, but it is now the standard for secure encryption. Most trusted VPNs use this method of security by default.