Generate Super Strong Password Password

A super strong password is warranted for protecting irreversible assets: cryptocurrency wallets, root server access, encryption master keys, password manager vaults, and accounts that control critical infrastructure. In these cases, the cost of a breach is catastrophic and potentially unrecoverable, so the extra entropy provides a meaningful additional safety margin.

From a pure security standpoint, any password over about 128 bits of entropy (roughly 20 mixed characters) is effectively unbreakable by all known methods. The practical benefit of going to 24 characters is the extra margin against unknown future attacks and meeting enterprise compliance requirements that may specify minimum entropy thresholds.

Bcrypt truncates at 72 bytes, so extremely long passwords may not fully benefit from their length with that algorithm. Argon2, scrypt, and PBKDF2 have no practical limits. A 24-character password stays well within bcrypt's limit while providing maximum security. If your system uses Argon2, you could go even longer, but 24 characters already exceeds practical attack capabilities.

It is unnecessary for low-value accounts but causes no harm if your password manager handles them. The real priority is uniqueness — a unique 16-character password per site is far better than reusing a 24-character password across sites. Reserve super strong passwords for your most critical credentials and use standard strong passwords for everything else.