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COJWT is NOT encryption.
It doesn’t hide your data — it just protects it from being changed.
Anyone can read a JWT.
No secret. No hack. Just decode it.
What JWT actually guarantees:
✔ The data wasn’t tampered
✔ The token was issued by the server
What JWT does NOT guarantee:
❌ Data secrecy
❌ Hidden user details
Think of JWT like a transparent ID card with a seal:
You can read it.
You can’t modify it.
That’s why:
👉 Never store passwords, secrets, or sensitive data in JWT
👉 HTTPS encrypts data in transit, not the token itself
Readable ≠ Encrypted.
Untampered ≠ Hidden.
Save this.
Most freshers (and many devs) get this wrong.
#jwt #authentication #authorization #websecurity #backendengineering softwareengineering developers cybersecurity tokens api techeducation
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