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[ARTICLE · art-142099] src=theregister.com ↗ pub= topic=ai-safety verified=true sentiment=↓ negative

Add one more AI worry to the nightmare scenario: self-replicating prompt injections

Researchers have demonstrated a self-replicating prompt injection attack that spreads between AI agents like a worm, according to a report from The Register. The attack class adds a new concern to AI security scenarios because the injected prompts propagate automatically rather than requiring repeated manual delivery.

by read2 min views2 publishedSep 29, 2026
Add one more AI worry to the nightmare scenario: self-replicating prompt injections
Image: The Register

AI

Add one more AI worry to the nightmare scenario: self-replicating prompt injectionsIt's a worm attack, AI-style

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Infosec

Security #### Russians are posing as Signal support to launch phishing attacksPLUS: US takes down Iranian propaganda sites; Marketing company asks 'Why Do We Have Your Information?' And more! #

Security #### Microsoft patches failed to fix on-prem SharePoint, which is now under zero-day attackPLUS: China upgrades smartphone surveillance tools; Ring eases anti-snooping stance; and more #

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Malware Month #### Ten years since the first corp ransomware, Mikko Hyppönen sees no end in sightOn the plus side, infosec's a good bet for a long, stable career

FOSS

KDE turns 30 and someone's brought an AI-native desktop proposalAkademy talk imagines Plasma assembling itself around a personal model of each user

Shopify extends lifeline to Tailwind as vibe coding erodes web dev platform's bottom lineAcquisition gives open source CSS framework 'a stable long-term home'

Switzerland tests a FOSS escape route from Microsoft 365Swiss Army sticks a knife in American cloud apps with its own FOSS push

Feel peak Windows was 7? You might like Kumander LinuxDebian and Xfce – solid, sensible choices – with a pretty skin

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Audacity audio-editing app no longer looks like it's from the early 2000sThe FOSS tool for audio editing has a fresh coat of paint, and new features to boot

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