# Hackers steal Microsoft 365 accounts via DNS poisoning on hotel Wi-Fi Cybercriminals are using a new attack method targeting hotel networks. - **Source:** [cybersecurity](https://brifing.si/source/57fea5eb-f11e-4b81-bc15-114313a8bd59) - **Published:** 2026-07-24 - **Topic:** [Software & Engineering](https://brifing.si/c/engineering) - **Original article:** - **On Brifing:** https://brifing.si/s/9001bf56-a471-4f29-9eb6-27b94aa626da ## A new cyber attack method Cybercriminals are using DNS poisoning techniques on hotel Wi-Fi networks to redirect users to fake Microsoft 365 login pages. This method allows them to steal account credentials. The attack specifically targets traveling business professionals. ## How DNS poisoning works DNS poisoning redirects users to fake websites controlled by attackers instead of legitimate ones. When used on hotel Wi-Fi networks, users unknowingly provide their login details to hackers while thinking they're accessing Microsoft 365. This is a sophisticated phishing technique. ## Target victim profile The attack specifically targets business professionals who travel frequently. These individuals often use hotel Wi-Fi to access work emails and Microsoft 365 applications. Attackers aim to obtain sensitive business data through these compromised accounts. ## Potential impacts of the attack This attack method risks not only individual users but also their connected organizations. Compromised accounts can provide access to corporate networks, leading to data breaches or ransomware attacks. The potential consequences are far-reaching. ## Protection methods Users can enhance security by using VPNs on hotel Wi-Fi networks. They should carefully check website URLs and enable two-factor authentication. Companies should educate employees about such threats and update their security policies accordingly. ## Warning for the industry This attack method highlights the need for renewed security measures in the travel industry. Hotels should implement stronger security protocols for guest networks. Additionally, extra security layers should be developed for Microsoft 365 users. ## Sources covering this story - https://www.reddit.com/r/cybersecurity/comments/1v5pa8w/hackers_use_dns_poisoning_on_hotel_wifi_to_steal/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._