Eurostar’s AI Chatbot Fiasco: Security Flaws and Accusations of Blackmail! 🚄💥
Researchers found flaws in Eurostar’s AI chatbot that could expose sensitive data. Their thanks? An accusation of “blackmail” from Eurostar’s head of security. The chatbot design fail means security checks only apply to the latest message, leaving the door open for prompt injection attacks. Eurostar’s response is still awaited.

Hot Take:
Who knew trying to help a train company patch its security holes could get you accused of blackmail? Next time, maybe Eurostar should consider sending a thank-you bouquet instead of suspicious glances. It seems like Eurostar’s security team missed the train to Humorville when dealing with Pen Test Partners. Perhaps they were too busy trying to iron out the wrinkles in their vulnerability disclosure program. After all, they did lose the original bug report somewhere in the digital Bermuda Triangle. Maybe next time they should try a carrier pigeon—it might be more reliable!
Key Points:
- Pen Test Partners found four security flaws in Eurostar’s chatbot.
- Eurostar initially did not respond to the researchers’ bug report.
- The train operator eventually patched some issues but accused researchers of “blackmail.”
- A design flaw in the chatbot’s API allows for HTML injection and prompt manipulation.
- Eurostar’s handling of the disclosure raises concerns about their vulnerability processes.
