cmr24.by Listed by stormous Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On 8 February 2025, the Belarusian organisation cmr24.by was listed by the ransomware group stormous, which claims to have exfiltrated and leaked approximately 5 GB of internal files. Public reporting indicates the material includes account statements, payment checks, a list of delinquent customers with associated data, invoices, operational reports and logistical documents. The number of people affected remains unknown, and independent confirmation of the full scope is limited.

The listing matters because the described files appear to contain financial and customer-related records that could expose individuals and business partners to fraud, identity misuse or further targeting if the data is authentic and has been released as claimed.

What happened

According to the available record, stormous listed cmr24.by on its leak site on or around 8 February 2025. The group states that it conducted a ransomware attack in which internal files were exfiltrated. The claimed data volume is 5 GB and the status is given as “Leaked.” The named contents are account statements and payment checks, a list of delinquent customers with their data, invoices, operational reports and logistical documents. No further technical details—such as the initial access method, exact date of intrusion, or ransom demand—have been disclosed in the public summary. The number of individuals whose information may be involved is listed as unknown.

Who is stormous?

Stormous is a ransomware operation that has appeared in public threat reporting as a group practising double extortion: encrypting systems while also stealing data and threatening to publish it if payment is not made. Like many contemporary ransomware actors, it maintains a leak site on which it posts victim names, sample files and claims about the volume and type of data taken. The group’s listings are self-reported assertions; they are not independently verified by default. In this case the listing of cmr24.by is therefore treated as a claim by stormous rather than as confirmed fact. Public documentation of stormous activity has described typical ransomware tactics—phishing, exploitation of remote-access services, and data theft followed by pressure campaigns—but no additional claims specific to this victim beyond the 5 GB leak announcement are part of the present record.

About cmr24.by

cmr24.by is a Belarusian organisation whose public-facing domain and the nature of the files described in the listing indicate involvement in commercial, financial or logistical operations. Organisations of this type commonly process invoices, payment records, customer account information and shipping or supply-chain documents. A breach of such material is consequential because it can reveal both the organisation’s internal financial position and personal or business details of customers, suppliers and partners. The precise corporate structure, size and full range of services of cmr24.by are not detailed in the breach record; only the domain and the claimed data categories are known.

What was likely exposed

The facts state that internal files were exfiltrated and that the claimed contents comprise account statements and payment checks, a list of delinquent customers with their data, invoices, operational reports and logistical documents, totalling approximately 5 GB. These categories typically include names, contact details, account numbers, transaction histories, amounts owed, invoice line items and shipping or warehouse records. Because the precise file inventory has not been independently published, it is not possible to confirm every field or the exact number of records. Organisations handling similar data routinely store customer identifiers, payment references and operational logs; any of these elements could be present, but the exact contents remain unconfirmed beyond the group’s description.

What's at stake

For individuals whose details appear in the delinquent-customer list, account statements or invoices, the primary risks are targeted fraud, phishing and identity misuse. Attackers can use authentic-looking financial or debt information to craft convincing scams or to attempt account takeovers. Business partners and suppliers named in invoices or logistical documents may face secondary exposure of commercial terms or contact data. For cmr24.by itself, the claimed leak of operational reports and payment records can damage trust with customers and counterparties, create regulatory or contractual obligations, and impose remediation costs. Because the number of affected people is unknown and the data has been described as leaked, the practical window for misuse may already be open.

If your data was in this claimed breach

If you have done business with cmr24.by or believe your details may appear in its financial or customer records, treat the possibility of exposure seriously. Monitor bank and credit-card statements for unexpected activity, enable multi-factor authentication on any accounts that share contact or payment information, and be alert to phishing messages that reference invoices, debts or logistics. Consider placing a fraud alert with credit bureaus if you are in a jurisdiction that offers that service. You can also run a free exposure scan of your email address to check whether it has already appeared in known breach data sets. Keep records of any suspicious contact and report confirmed fraud to the relevant authorities and financial institutions promptly.

AICompiled with AI assistance from public sources and published under our editorial standards.