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security
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Cover for Blog Series #2 with the title "JWT", a terracotta cursor and the subtitle "JSON Web Token".Cover for Blog Series #2 with the title "JWT", a terracotta cursor and the subtitle "JSON Web Token".
security5 min

Blog Series #2 — Is your JWT protected?

A JWT relies on its signature to guarantee that nobody changed its contents. If the secret used for that signature is weak or exposed, an attacker can create valid tokens and manipulate the application.

Oct 19, 2026
Cover for Blog Series #1 with the title "SIM swapping", a terracotta cursor and the identifier SMS 2FA.Cover for Blog Series #1 with the title "SIM swapping", a terracotta cursor and the identifier SMS 2FA.
security4 min

Blog Series #1 — SIM swapping: why 2FA should not live on your phone number

An SMS 2FA code goes to the number, not to you. If someone takes over the SIM, account recovery lands on the wrong phone.

Oct 12, 2026