O(n) Authentication: When Your Login System Is Also A Performance Test

database bad code authentication Technical debt Legacy code Login Scalability Password hashing

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3 months ago 140,318 views 0 shares

O(n) Authentication: When Your Login System Is Also A Performance Test

javascript-memes, security-memes, authentication-memes, bad-code-memes, technical-debt-memes | ProgrammerHumor.io

The function loops through ALL USERS to find one with matching credentials instead of using a proper query. The comment is the chef's kiss: "This only works because there are not many users." It's like saying "my car doesn't need brakes because I don't drive fast." Bonus security nightmare: they're storing password hashes but comparing them directly instead of hashing the input password first. This authentication is basically a time bomb wrapped in spaghetti code!

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