Your cell phone number uniquely identifies you. Many companies rely on this 1-to-1 relationship to authenticate you to their systems. So if someone were to somehow manage to steal your mobile phone number – a hack called SIM swapping – they could use that to impersonate you and compromise any of your accounts that are validated via SMS or phone call. There’s a new tool to combat this scam that’s better than the old-style account PIN codes. I’ll explain how it works.

In the news: many Brother printers have serious cyber vulnerabilities; Belkin in abandoning Wemo smart devices next January; Xfinity’s WiFi routers can detect motion in your entire home; Bluesky is rolling out age verification in the UK; California is using drones to catch the use of illegal fireworks; McDonald’s AI hiring bot was hacked to expose millions of applicants’ data; Mexican drug cartel hacked FBI phone to catch informants; US strikes blow against North Korean fake worker scams; Denmark is looking to ditch Microsoft products.