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Cybbersecurity

Technology 7 hrs ago
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    Ifeanyi Chibueze
    7 hrs ago
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    🧵 Hackers don’t break in — they log in.
    Want to learn how to stop them?
    Here’s a thread every programmer needs:
    10 Subtle Security Mistakes Developers Make (And How Hackers Exploit Them) 👇

    1. 🧠 Hardcoded API keys
    It’s convenient… until it leaks on GitHub.
    Hackers scan public repos daily — looking for .env mistakes.
    ➡️ Always use environment variables.

    2. 🛑 No Rate Limiting on Login APIs
    Brute-force attacks are still real.
    If your login endpoint has no throttling, it’s a door wide open.
    ➡️ Use tools like express-rate-limit or Django Ratelimit.

    3. 🔐 Using MD5 for Password Hashing
    MD5 is broken. SHA1 too.
    ➡️ Use bcrypt, argon2, or scrypt. Always with a salt.

    4. 🧨 SQL Injection via Poor Queries
    Still using raw SQL strings like:

    SELECT * FROM users WHERE name = '$input'

    ➡️ Use prepared statements or ORM query builders.

    5. ⚠️ Misconfigured CORS
    Allowing Access-Control-Allow-Origin: * on everything?
    Congrats — your API is now wide open for abuse.
    ➡️ Lock CORS to your frontend domain only.

    6. 📂 Leaving .git Folder on Live Server
    It’s public.
    It exposes history, secrets, structure.
    ➡️ Always check what gets deployed. Use .gitignore and CI properly.

    7. 🚫 No Input Validation
    Hackers LOVE unchecked inputs.
    ➡️ Use libraries like Joi, Zod, or built-in validators to sanitize everything.

    8. 🔓 Running Dev Mode in Production
    Leaving debug mode on is handing out free info to attackers.
    ➡️ Always double-check env configs before pushing live.

    9. 🌍 Exposing Internal APIs/Public Buckets
    Sometimes devs forget S3 buckets or test APIs.
    Hackers don’t.
    ➡️ Audit your infra regularly. Use tools like Shodan to see what’s visible.

    10. 📱 No 2FA on Admin Accounts
    Doesn’t matter how secure your code is —
    If your admin panel has a weak password and no 2FA… game over.

    🧠 Final Thought:
    Cybersecurity isn't just for "infosec" folks.
    If you write code — you’re on the frontlines.

    Secure coding = responsible coding.

     

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