Using strong, unique passwords for each account is one of the most effective defenses against identity theft and unauthorized access. This article explains what makes a password strong and how to generate them without memorizing long lists.
Why length and randomness matter
Attackers use leaked password databases, dictionaries and brute force. A short or predictable password (name, date, “password123”) falls in minutes. A long, random password (e.g. 16–20 characters with upper and lower case, numbers and symbols) can take years to brute force, as long as the service stores a strong hash (e.g. bcrypt or Argon2).
That’s why it’s better not to “make up” something easy to remember but to use a password generator that creates random strings and store them in a password manager.
Best practices
- One password per service: if one account is compromised, the rest stay protected.
- At least 12 characters, preferably 16 or more for critical accounts (email, banking, work).
- Mix character types: upper and lower case, numbers and symbols when the site allows.
- Password manager: so you don’t have to memorize dozens of keys; only the master password (and 2FA if available).
- Two-factor authentication (2FA): enable it on email, social and important services for an extra layer even if someone knows your password.
How to generate a strong password
An online password generator that runs in the browser lets you choose length and include or exclude upper case, numbers and symbols, then copy the result. Use it to create unique passwords and save them in your manager; don’t reuse them. If you’re a developer, never generate user passwords on the server without a minimum strength policy (length and complexity) and always store only a hash (e.g. bcrypt), never plain text.