Being in the embedded safety/security industry for years, piezo igniters and sparklers are one of my go-to system test and side attack tools. They were also eff

Being in the embedded safety/security industry for years, piezo igniters and sparklers are one of my go-to system test and side attack tools. They were also effective opening an August smart lock some time ago when one of my coworkers had to enter a room in a hurry and were not carrying their phone with the app. Amazingly a few zaps around the enclosure did it. The big ones for gas stoves even work some feet away on some badly shielded products. Growing complexity, size/weight reduction and low power technology have made all these devices quite flimsy these days.