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Imagine you're using Uber. You request a ride. Within seconds, your request reaches an available driver near you. But here's the interesting question. How did Uber know which driver service to contact?
Imagine you're scrolling through your Instagram feed. You like a post. Your friend refreshes their phone immediately. For a few seconds... they still don't see your like. Did the system lose your data? No.
Imagine you're transferring ₹10,000 from your bank account to your friend's account. The process looks simple. Your account balance decreases. Your friend's balance increases. Now imagine something goes wrong halfway through. Your account is debited. But your friend's account is never credited because the database crashed. The money disappears.
Build employer-trusted certificate verification: unique IDs, QR codes, public lookup APIs, fraud prevention, and why blockchain is usually optional.
Practical OWASP Top 10 mitigations for ASP.NET Core APIs: injection, broken auth, SSRF, security headers, and verification steps you can implement without a six-month security program.
Build secure token-based auth: access token lifetimes, refresh rotation, storage trade-offs, and common mistakes that leak sessions in SPAs and mobile clients.
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