dev.to/tag/security· Oct 4, 2026· by Daniel Pertu

Our activation code has no O, no 0, no I and no 1, and 32 is what makes the maths safe

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Notifio is a desktop app that watches rental search pages and tells you when a new listing appears. It is a one-time £20 purchase and it has no accounts, no sign-up, no password. After checkout you get an email with an activation token, you type it into the app, and that is the whole of our identity system. Which means the token is not only a credential. It is a piece of user interface that somebody has to read off a screen, in a monospace font, and retype into a desktop app, sometimes months la
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.
#node#security#typescript#webdev