Secure Password Storage

Cryptography · Axiom Academy

REAL WORLD Secure Password Storage What happens when password databases are breached, and how modern systems protect you The Costly Consequences of Poor Password Storage Between 2012 and 2013, some of the world's largest companies suffered massive password database breaches that exposed millions of users. But here's the shocking part: the severity of each breach depended entirely on how passwords were stored. Let's examine three infamous breaches that demonstrate why password storage security matters: The Mistake: Passwords stored in plaintext (completely unencrypted) The Impact: Attackers instantly had every single password. No cracking needed. Complete disaster. The Mistake: Passwords hashed with SHA-1 without salting The Impact: Attackers used rainbow tables and GPU clusters to crack 90% of passwords within days. The Mistake: Passwords encrypted with 3DES in ECB mode (same password = same ciphertext) The Impact: Identical passwords produced identical encrypted values, allowing pattern analysis and cross-referencing with password hints. These breaches cost hundreds of millions of dollars in damages and destroyed user trust. The difference between a minor incident and a catastrophe? How the passwords were stored. How Attackers Crack Password Databases When attackers steal a password database, they don't immediately have your passwords. Instead, they have hashes (one-way mathematical transformations). Their goal: reverse-engineer the original passwords.

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