Hey everyone! This one is a wake-up call about what AI agents can do in the wrong hands. On Monday (Oct 19), Reuters reported on research from the security company NorForge. Its researcher, Snorre Fagerland, found hackers who had accidentally left their control panels for an open-source AI tool called Cairn open on the internet. That let him quietly watch over their shoulders as they worked. The busiest one was a Chinese-speaking hacker who did almost none of the hacking themselves. They gave their AI agents short instructions (fewer than 100 Chinese characters) and let them loose on online stores in the US, Canada, Australia and Japan starting around Sept. 25. By late last week, the agents had tried more than 1,200 websites and broken into more than 100. A successful break-in usually took about 23 hours of the agents poking around on their own. Fagerland estimates the whole thing cost about $5,000 in AI usage, or roughly $50 per successful hack. The setup appeared to use a mix of DeepSeek models and Anthropic's Claude Code. Reuters identified John Deere, SharkNinja and Cummins among the targets. Deere said it saw no sign that sensitive information was accessed, SharkNinja said only a separate product-support site was hit and the threat was contained, and Cummins said it is looking into a possible attack on a site run by one of its vendors. Reuters couldn't confirm how much data, if any, was actually taken. Cairn's creator says the tool was never meant for hacking. Why it matters: Hacking used to take skill and a lot of time. Here, one person with a few thousand dollars and short instructions got a team of AI agents to do the work around the clock. As Fagerland put it: "It's a new world now." If you run a business website, even a small one, basic security (updates, strong passwords, a good host) matters more than ever, because the attackers now never get tired. Question: Does this change how you think about AI agents? And when did you last check that your own website and tools are up to date?