Listening in at Latimer House. RF emissions and more

This article recounts lessons from a company conference at Latimer House, connecting historical intelligence tradecraft to modern cyber and EM/RF security risks. It surveys eavesdropping techniques such as The Thing, Van Eck phreaking, laser microphones, and RF profiling, explains the relevance of EM shielding and TEMPEST, and offers pragmatic mitigations including shield validation, bug sweeps, Wi‑Fi power tuning, supply‑chain RF baselining, strong encryption, and collaboration with NCSC. The piece concludes that most organizations face lower EM/RF risk than classified environments and should prioritize reducing OSINT leakages and remediating remotely exploitable issues while adopting proportionate EM/RF assurance.