https://www.theverge.com/2017/10/16/16481252/wi-fi-hack-attack-android-wpa-2-details >A new exploit can allow attackers to read Wi-Fi traffic between devices and wireless access points, and even modify it to inject malware into websites. Researchers have started disclosing security vulnerabilities today, and it looks like Android and Linux-based devices are the worst affected. Researchers claim the attack works against all modern Wi-Fi networks using WPA or WPA 2 encryption, and that the weakness is in the Wi-Fi standard itself so it affects macOS, Windows, iOS, Android, and Linux devices. >Intercepting traffic lets attackers read information that was previously assumed to be safely encrypted, and hackers don’t need to even crack a Wi-Fi password to achieve this. The vulnerability requires that a device be in range to a malicious attacker, and it can be used to steal credit card numbers, passwords, chat messages, photos, emails, and lots of other online communications.