How to create a strong password
Updated on June 30, 2026 · by Rafael Rossi
A strong password is hard to guess and slow to crack by trial and error. What matters most isn't complexity — it's length.
The rules that matter
- Length first: use 16 characters or more. Each extra character multiplies the cracking time.
- Mix the types: uppercase, lowercase, numbers and symbols greatly increase the combinations.
- No personal data: name, birth date, favorite team — those are tried first.
- One password per site: if one leaks, the others stay safe.
What to avoid
Sequences (123456, qwerty), dictionary words and obvious swaps (password → p4ssw0rd). Modern attacks already know these tricks.
The practical tip
Use a password manager to create and store long, unique passwords — you only remember one master password. Or combine 4–5 random words into a long, memorable passphrase.