This seems like a very strange post? It describes a bunch of vulnerabilities that have been described in Bluetooth, but as far as I can tell these are all thing

This seems like a very strange post? It describes a bunch of vulnerabilities that have been described in Bluetooth, but as far as I can tell these are all things that have been rectified - it's like saying that having IP connectivity threatens your security. It's correct, in the sense that anything that adds attack surface is a threat to your security, but misleading in the sense that Bluetooth is somehow special in this respect. Oh. It's from 2013. That makes more sense. The prevalence of BTLE in modern life means that anyone who isn't thinking of Bluetooth as an attack vector is well behind the curve, but I can believe it back then - although initial Bluetooth attacks against inadequate devices were demonstrated back in 2005 with stuff like Bluejacking, so bringing that up in 2013 as an unconsidered vector still seems odd. It's a 2013 article largely talking about attacks that were described in 2005, if this is telling you something new in 2019 and it has any impact on you then you're way behind where you should be.