5 min read
2026-02-08
Name, date of birth, phone number — all of this is easy to find on social media.
Each additional character increases brute-force complexity exponentially.
A password made of only lowercase letters is significantly weaker than a mixed character set.
Dictionary attacks check millions of words in seconds, including words in various languages.
Substitutions like a→@, o→0, s→$ are well-known to hackers and add no real security.
A breach at one service compromises all your accounts with the same password.
Even a strong password may have been compromised in an unknown data breach.
Use a random password generator
Store passwords in a password manager
Enable two-factor authentication
Regularly check passwords with the [Strength Checker](/tools/password-strength)
See also: Password Generator, URL Validator