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Programming Articles

Programming languages, algorithms, coding tutorials, software architecture, and development best practices.

The Day I Learned Hashing Isn't Always Security
Programming 5 min read

The Day I Learned Hashing Isn't Always Security

I was six months into building a fintech product when I made a decision that should have broken everything. I was storing user bank account numbers, and my instinct—the same instinct I'd relied on for years—told me to hash them. Hash everything sensitive. It's secure. It's irreve...