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Threat Actors Use Fake Booking.com Emails to Deceive Hotel Staff and Gain System Access

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A sophisticated phishing campaign targeting the hospitality industry has been uncovered, with threat actors impersonating Booking.com to gain access to hotel systems and customer data.

Microsoft Threat Intelligence has attributed the ongoing attacks, which began in December 2024 and continued through February 2025, to a group known as Storm-1865.

The campaign primarily targets North America, Oceania, South and Southeast Asia, and Europe hospitality employees.

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Attackers employ social engineering techniques, sending emails that appear to be from Booking.com and contain various lures such as negative guest reviews, requests from potential travelers, or account verification notices.

Malware Deployment and Credential Theft

ThreatDown detailed one variant of the attack: sending a fake booking confirmation email to hotel staff.

The email contains a link that, when clicked, leads to a fraudulent CAPTCHA website.

Booking.com
fake CAPTCHA website

Upon interaction, the victim is presented with “verification” instructions that, if followed, result in the execution of malicious code on their system.

The malware deployed in these attacks is often an information stealer, such as the Vidar infostealer.

According to the Report, this malware is designed to collect sensitive data, including login credentials for the Booking.com management portal.

Once obtained, these credentials allow threat actors to access upcoming bookings and directly message guests.

Customer Data at Risk

With access to the Booking.com management portal, attackers can view upcoming reservations and communicate directly with guests.

They often send messages claiming there was an error in verifying payment information, requesting that guests re-enter their card details to avoid reservation cancellation.

The success of this attack vector is amplified by the fact that Booking.com’s service reportedly does not provide two-factor authentication for hotel accounts, meaning access can be gained with just a username and password.

To protect against these attacks, hotels and other businesses in the hospitality industry should implement robust email filtering systems, provide regular security awareness training to staff, and enable multi-factor authentication on all accounts where possible.

Additionally, customers should be cautious of any unexpected requests for payment information, even if they appear to come from legitimate sources.

As this campaign continues to evolve, it serves as a stark reminder of the ongoing threats faced by the hospitality industry and the importance of maintaining strong cybersecurity practices to protect both business and customer data.

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Aman Mishra
Aman Mishra
Aman Mishra is a Security and privacy Reporter covering various data breach, cyber crime, malware, & vulnerability.

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