Ehud Leviathan Engineering Listed by mosesstaff Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
The Ehud Leviathan Engineering Listed by mosesstaff Ransomware Group (reported December 18, 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.
In December 2021, the engineering firm Ehud Leviathan Engineering appeared on a leak site operated by the ransomware group mosesstaff. The listing indicated that internal files had been taken during a ransomware operation, though the number of individuals affected and the precise contents of the material remain unknown. Such listings form part of a broader pattern in which ransomware operators publish victim names to increase pressure for payment, a tactic that became routine by late 2021.
Breaking down the breach
The only confirmed public detail is the appearance of Ehud Leviathan Engineering on the mosesstaff leak site on 18 December 2021. The group stated that internal data had been removed. No information has been released about the date or method of intrusion, the volume of material taken, or whether encryption was also deployed against the organisation’s systems. The number of people whose information may be involved is not known.
Inside mosesstaff
Mosesstaff emerged as a ransomware operator in 2021 and followed the double-extortion model common at the time: encrypting systems where possible and threatening to publish stolen files if a ransom was not paid. The group maintained a leak site on which it listed organisations it claimed to have compromised. Public reporting has linked the actor to infrastructure and tactics associated with Iran, though attribution in individual cases varies in certainty. Listings on the site served primarily as a means of publicising claims rather than as verified proof of data possession.
Ehud Leviathan Engineering and its sector
Ehud Leviathan Engineering operates in the engineering and construction sector. Firms of this type routinely manage project documentation, client specifications, technical drawings, supplier contracts and employee records. A breach that exposes such material can affect ongoing commercial relationships and regulatory compliance obligations even when the exact files remain undisclosed.
The information in question
The mosesstaff listing refers only to “internal files.” No inventory of specific data categories has been published. Organisations in the engineering sector commonly hold design documents, financial records related to projects, correspondence with clients and partners, and personal information of staff. Without further disclosure from either the organisation or the group, the precise nature of any exfiltrated material cannot be confirmed.
The real-world impact
Exposure of internal engineering files can create commercial and operational risks, including the potential use of proprietary designs by competitors or interference with project timelines. Where personal data of employees or clients is involved, affected individuals may face increased risk of targeted phishing or identity misuse. For the organisation, the incident adds to the administrative burden of assessing scope, notifying relevant parties and reviewing security controls, regardless of whether ransom demands were met.
Were you affected?
Individuals who have worked with or for Ehud Leviathan Engineering should monitor their email accounts and financial statements for unusual activity. Basic protective steps include changing passwords for any associated services, enabling multi-factor authentication, and remaining alert to unsolicited messages that reference the organisation. Readers may also run a free exposure scan of their email address against known breach data sets to check for prior appearances in public listings.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
More recent breaches
David Engineers Listed by mosesstaff Ransomware GroupH.G.M Engineering Listed by mosesstaff Ransomware GroupThis is just the beginning Listed by mosesstaff Ransomware Group3D imagery of israel Listed by mosesstaff Ransomware GroupLatest breaches
Publicly posted by mosesstaff — 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.