A new vulnerability has been discovered recently called “KRACK Attack”. In short, there is a exploitable flaw in the Wi-Fi security protocol WPA2, this protocol is designed to encrypts data traffic over a wireless network, but now there is a vulnerability that allows an attacker who is on the same wireless to intercept and read sensitive data being transferred over the network. Almost all phones, laptops, tablets that are Wi-Fi enabled are at risk.  The good news is that this is fixable via software patches to our phones, etc. but that will take some time. In the meantime, don’t connect to unknown wireless networks and make sure you are using HTTPS websites when you browse the web.

Link to the technical write up on the vulnerability