this post was submitted on 10 Feb 2026
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75
AI agents spill secrets just by previewing malicious links (www.promptarmor.com)
submitted 1 day ago* (last edited 1 day ago) by Beep@lemmus.org to c/technology@lemmy.world
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Communicating with AI agents (like OpenClaw) via messaging apps (like Slack and Telegram) has become much more popular. But it can expose users to a largely unrecognized LLM-specific data exfiltration risk, because these apps support ‘link previews’ as a feature. With previews enabled, user data can be exfiltrated automatically after receiving a malicious link in an LLM-generated message -- whereas without previews, the user would typically have to click the malicious link to exfiltrate data. For example, OpenClaw via Telegram is exposed by default. Test any agent / communication app pairing below!

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[–] paraphrand@lemmy.world 2 points 1 day ago (2 children)

OpenGraph tags in particular? Or do you mean something else?

[–] village604@adultswim.fan 1 points 9 hours ago

OpenGraph is just one protocol used for previews, but other ones exist.

[–] homesweethomeMrL@lemmy.world 1 points 1 day ago

Link shortening, as a different example. Thankfully it finally sort of died. Pre-loading is another. Tiktok is uploading before the file is saved, is another.