What makes a Password Strong?
A strong password is one that is difficult for a human to guess and even harder for a computer program to crack. Password security is often measured in "entropy" – a measure of randomness.
Entropy and Time-to-Crack
Computer programs can try millions of password combinations per second using techniques called "Brute Force" or "Dictionary Attacks".
- Length: Each additional character exponentially increases the time needed to crack the password.
- Complexity: Using digits and symbols increases the "charset" size, further increasing the difficulty.
- Unpredictability: Avoiding names, birthdays, and common words (like "password123") prevents dictionary attacks.
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