sheraton.marrio... Listed by lockbit2 Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
The sheraton.marrio... Listed by lockbit2 Ransomware Group (reported September 29, 2021) is an unverified claim; the data involved is undisclosed belonging to roughly unknown people. If you have an account with them, your information may now be circulating on the open web and with data brokers. Here’s exactly what happened, how to check if you were affected, and what to do next.
Inside the incident
The available information is limited to the public listing itself. sheraton.marrio... was added to the lockbit2 site on the reported date, with the group stating that internal data had been removed. No Reported Details have been released about the timing of the intrusion, the volume of data involved, the method of initial access, or whether any material was subsequently published. The scale of impact on individuals or operations is not publicly documented.
Who is lockbit2?
Lockbit2 is a ransomware operation that has conducted multiple campaigns since at least 2019. The group typically deploys encryption on targeted systems and maintains a leak site where it lists organizations from which it claims to have taken data. Its approach follows the double-extortion pattern observed in several ransomware groups, in which data exfiltration is used alongside encryption to pressure victims. Public reporting has documented the group’s activity across multiple countries and sectors, though specific claims made about any single victim require independent verification.
sheraton.marrio... and its sector
sheraton.marrio... operates within the hospitality sector as part of the broader Marriott International portfolio. Organizations of this type routinely process reservations, guest profiles, payment card details, loyalty program records, and internal operational documents. A compromise in this setting can affect both corporate systems and large volumes of personal information collected from travelers and employees.
The information in question
The listing refers only to “internal files exfiltrated in ransomware attack.” No inventory of specific data categories has been confirmed. Hospitality organizations commonly hold names, contact details, booking histories, payment information, and employee records, but the exact material taken in this case is unconfirmed.
What's at stake
Individuals whose information appears in such files may face risks of identity misuse or targeted fraud, depending on the data elements involved. For the organization, the incident can produce operational disruption, regulatory scrutiny, and costs associated with investigation and remediation. Because the number of affected people and the precise data types remain unknown, the full extent of consequences cannot yet be measured.
What to do if you're exposed
Anyone concerned about possible exposure should monitor accounts for unusual activity and consider placing fraud alerts with credit bureaus. Changing passwords for any loyalty or booking accounts linked to the organization and enabling multi-factor authentication where available are immediate steps. Readers can run a free exposure scan of their email address to check whether their information has appeared in known breach data sets.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Publicly posted by lockbit — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.