It’s been a while since Wi-Fi was a novel technology in computer networking. You might remember a Linksys black and blue “router” with 54 Mbps speeds, which was lighting fast back in the day. Since then, 20 years have passed from the introduction of 802.11g (54 Mbps) to now, a world where Wi-Fi is available everywhere, including OT and especially IoT environments.
But wireless technologies extend far beyond Wi-Fi. The wireless spectrum is wide, and we need to think about everything we can’t see when it comes to protecting critical infrastructure.
The Electromagnetic Spectrum
Visible light is just a tiny portion of all the available frequencies in the electromagnetic spectrum. The fact that we cannot see the rest of the spectrum doesn’t mean it does not exist. We just need different instruments to help us detect those frequencies. Space telescopes are a great example – they can help us interpret the spectrum from X-ray to Gamma ray...read more!
