We’re all familiar with the line: “If you’re not paying for the product, you are the product.” It’s become almost boring. Until you realize what we’re actually handing over these days.

I’m not primarily talking about credit cards or passwords. I’m talking about the quiet stuff. The late-night worries. The half-formed thoughts. The things we used to only tell a close friend, a therapist, or the inside of our own skull. More and more people are dumping that straight into an AI chat window.

I’ve touched on this before — how data has already become the real currency, and how we’re constantly feeding the machines with location, habits and preferences . This time the question cuts deeper.

The more we lean on AIs from companies (and countries) with varying levels of seriousness about privacy — and the more capable and autonomous these systems become — the bigger the surface area for things to go sideways. Targeted advertising on a whole new level is the polite version. Blackmail material, profiling for influence, or simple quiet extraction of patterns is the less polite one.

I’m not claiming your AI is about to crawl out of the machine and start freelancing as a data broker. That still lives in the speculative zone. But the incentives and the capabilities are both moving in the same direction, and history suggests that combination rarely ends with “everything stayed fine.”

Which is why I keep coming back to something very unsexy and very physical: the hardware kill switch. A real network isolation device that physically disconnects the cable (relay, dongle, whatever form it takes) and creates an actual air gap. Not a software toggle. Not a firewall rule that can be bypassed. A physical break.

These things have existed for years in critical infrastructure, defense, and power grids. One company that actually builds them is Valiant Communications Limited (BSE: 526775), an Indian listed firm. They make hardware-based Network Isolation (Kill) Switches designed for deterministic, physical-layer isolation. Recently evaluated with the Indian Armed Forces for mission-critical use.

For the rest of us, a basic 5–8 port gigabit switch is still only 15–50 dollars. The enterprise-grade isolation gear costs a lot more. But the principle is the same: when you really want the network gone, software is not enough.

I don’t own the stock (yet). I’m looking closer at this corner of the market because I suspect physical isolation will matter more, not less, as AI systems get deeper into our daily thinking. The more common the AI becomes, the more valuable the ability to simply unplug will be.

What’s your current comfort level with dumping private thoughts into a chatbot? And have you ever actually pulled the plug on purpose?