How Secure is Your Password? A Guide to Password Entropy
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The "Password123" Problem
We all know we should use strong passwords, but we often default to simple, memorable phrases. The problem is, hackers know this too. They use sophisticated "dictionary attacks" to guess millions of common passwords in seconds.
What is Password Entropy?
Password entropy is a measure of how unpredictable a password is. It's measured in bits.
- Low Entropy (< 40 bits): Can be cracked instantly.
- Medium Entropy (40-60 bits): Can be cracked in hours or days.
- High Entropy (> 80 bits): Would take centuries to crack.
You can check the strength of your current passwords using our Password Entropy Estimator. It calculates the bits of entropy and estimates the time it would take a computer to crack it.
How to Create Strong Passwords
The secret to a strong password is randomness and length.
- Length: Longer is better. A 16-character password is exponentially stronger than an 8-character one.
- Complexity: Mix uppercase, lowercase, numbers, and symbols.
- Unpredictability: Avoid common words or personal info.
The Solution: Random Generation
Humans are terrible at being random. We pick patterns even when we try not to. The best way to get a secure password is to let a computer generate it for you.
Use our Random Password Generator to create cryptographically strong passwords instantly. You can customize the length and character sets to meet specific requirements.
Don't leave your digital security to chance. Upgrade your passwords today.