dev.to/tag/security· Oct 20, 2026· by Yurii Serhovskyi

An assistant, not a record

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I have never been a note-taking person. For years my notes were a place to put things so I would not forget them — no linking, no structure, none of the productivity machinery people build around Obsidian, and that has not changed. What changed is that since May 2026 a Claude agent has read and write access to the notes-vault, and it does that part instead of me: personal notes, projects, basic planning. I talk to it in a Discord channel. Some evenings I type «Добраніч» — good night — into that
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.
#ai#obsidian#security#productivity