What if you could build your own embedded security tools, glitching devices for a fraction of the cost that you might expect. Like having a $150,000 laser setup for less than $500. A talk at Black Hat USA 2024 says you can. Sam Beaumont (Panth13r), Director of Transportation, mobility and cyber physical systems at NetSPI, and Larry Trowell (patch), Director of hardware embedded systems at NetSPI, along with a team of others, say that you can. Their talk, Laser Beams & Light Streams: Letting Hackers Go Pew Pew, Building Affordable Light-Based Hardware Security Tooling, should be a wake up call for all IoT and OT device vendors who should defend our IoT and OT devices, even against the unlikely attacks. Because soon enough, those attacks will become likely.