Perplexity’s AI browser prompt-injected by any website

Vibe security
Text version: https://pivot-to-ai.com/2025/08/25/perplexitys-ai-browser-comet-can-be-prompt-injected-by-any-website/

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Sources:

Agentic Browser Security: Indirect Prompt Injection in Perplexity Comet https://web.archive.org/web/20250820140623/https://brave.com/blog/comet-prompt-injection/
“We think a separate model can help with one layer of this:” https://news.ycombinator.com/item?id=45008574
“Scamlexity”: We Put Agentic AI Browsers to the Test — They Clicked, They Paid, They Failed https://guard.io/labs/scamlexity-we-put-agentic-ai-browsers-to-the-test-they-clicked-they-paid-they-failed
“I am heartbroken to report that Kindle's web view blocks Perplexity Comet browser” https://x.com/garrytan/status/1959112123076026415
“I like to read things and chat with Perplexity about the concepts and where they are from” https://x.com/garrytan/status/1959114361068539932
“This is the worst” https://x.com/garrytan/status/1959112679400026486

uBlock Origin https://addons.mozilla.org/en-GB/firefox/addon/ublock-origin/

Previously on Pivot to AI and Attack of the 50 Foot Blockchain:

Brave web browser no longer claims to fundraise on behalf of others — so that’s nice https://davidgerard.co.uk/blockchain/2019/01/13/brave-web-browser-no-longer-claims-to-fundraise-on-behalf-of-others-so-thats-nice/
The Brave web browser is hijacking links, and inserting affiliate codes https://davidgerard.co.uk/blockchain/2020/06/06/the-brave-web-browser-is-hijacking-links-and-inserting-affiliate-codes/

AI winter is in the air! But we think the AI bubble keeps going until 2027 https://pivot-to-ai.com/2025/08/23/ai-winter-is-in-the-air-but-we-think-the-ai-bubble-keeps-going-until-2027/
video: https://www.youtube.com/watch?v=vp1-3Ypmr1Y&list=UU9rJrMVgcXTfa8xuMnbhAEA
In 2025, venture capital can’t pretend everything is fine any more https://pivot-to-ai.com/2025/05/03/in-2025-venture-capital-cant-pretend-everything-is-fine-any-more/
video: https://www.youtube.com/watch?v=VcSnLt6Knbs&list=UU9rJrMVgcXTfa8xuMnbhAEA

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