If we're talking about general tradecraft, in a how would you do it vein. I suspect a small internet-enabled device set to randomly transmit some time in the ne

If we're talking about general tradecraft, in a how would you do it vein. I suspect a small internet-enabled device set to randomly transmit some time in the next few days or so, that sends OTP encrypted messages to as many people as it can, including the destination, and that self-destructs... releases acid or whatever into the chips... once it's done or if it's tampered with, would be hard to trace back the sender. Throw it in a bin along with your morning coffee in a place thousands of people go a day - it'll get mixed in with all the other trash in a landfill somewhere and then good luck finding whose trash it went there with....