Russian hackers have reportedly hijacked hotel Wi-Fi networks to steal Microsoft 365 authentication tokens from unsuspecting users. This technique allows attackers to gain access to sensitive accounts without needing the users' passwords. The incident primarily affects travelers and guests using hotel Wi-Fi, who may unknowingly expose their credentials while accessing their Microsoft accounts. This type of attack raises significant concerns about the security of public internet connections and the potential for widespread account takeovers. Users should be cautious when connecting to hotel Wi-Fi and consider using a VPN to protect their data.