Security flaws in the Wi-Fi standard dating back to 1997 have just been discovered that allow local attackers to invade networks. A hacker within radio range of a network can use FragAttacks (fragmentation and aggregation attacks) to attack devices and steal user information, says Belgian security researcher Mathy Vanhoef.
Vanhoef found that half of the routers, several smartphones, and IoT devices that were tested were affected by the vulnerability. Most security protocols of Wi-Fi, from the WPA3 spec to WEP, are susceptible. Thankfully, the attack can only be carried out when certain uncommon settings are used.
