SEA-JET.COM Listed by clop Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

Ransomware groups continue to pressure organisations by combining encryption with data theft and public leak-site listings, a tactic that has become a regular feature of the current cyber-threat landscape. On 27 February 2025 the maritime travel operator SEA-JET.COM appeared on a listing attributed to the clop ransomware group, which claimed that internal files had been exfiltrated. The number of people affected remains unknown, and public detail about the incident is limited, yet the listing itself places customers, partners and staff in a position where they must consider possible exposure of organisational records.

Because the claim originates from a threat actor’s leak site rather than an independent confirmation, the precise scope and method of any intrusion stay unconfirmed. What is known is that the listing asserts a ransomware attack involving the removal of internal files, an assertion that warrants careful attention from anyone who has dealt with the company.

What happened

According to the available record, SEA-JET.COM was listed by the clop ransomware group on 27 February 2025. The group claims that internal files were exfiltrated during a ransomware attack. No figure for the number of people affected has been published, and the technical method of the intrusion, the exact volume of data taken, and any ransom demand remain undisclosed. Public reporting does not confirm whether systems were encrypted, whether operations were interrupted, or whether the company has verified the group’s assertions. The sole concrete element is the leak-site listing itself, which presents the exfiltration of internal files as the core claim.

Inside clop

Clop is a well-documented ransomware operation that has operated for several years under a double-extortion model: data is stolen before systems are encrypted, and the threat of public release is used to increase pressure on the victim. The group maintains a dark-web leak site where it posts the names of organisations it claims to have compromised, often accompanied by sample files or countdown timers. Clop has previously been linked to large-scale campaigns that exploited vulnerabilities in widely used file-transfer software, and it has targeted a range of sectors including manufacturing, finance and transportation. Its operators typically communicate in Russian and focus on organisations large enough to pay substantial ransoms. In the present case the listing of SEA-JET.COM is simply a claim made by the group; no independent verification of the intrusion or of any specific files has been supplied in the public record.

About SEA-JET.COM

SEA-JET.COM operates as a maritime travel company that provides high-speed ferry services across various routes. Its fleet of jet-powered vessels carries passengers and vehicles, and the company sells tickets, vehicle transport and special trip packages. Organisations of this type routinely manage booking systems, passenger manifests, payment records, vehicle registration details and internal operational documents. A breach affecting such a firm is consequential because ferry operators sit at the intersection of consumer travel, logistics and safety-critical transport; any compromise of their systems can affect both individual travellers and the reliability of sea routes that communities depend upon.

What data was at risk

The only data category named in the public record is “internal files” said to have been exfiltrated in a ransomware attack. No further breakdown—such as customer databases, financial records, employee information or operational schedules—has been disclosed. Maritime travel companies typically hold passenger names, contact details, booking histories, payment card data, vehicle registration numbers and crew or staff records. Because the exact contents remain unconfirmed, it is not possible to state which of these categories, if any, were among the files claimed by the group. The absence of a confirmed inventory means that anyone who has purchased tickets, transported a vehicle or worked with SEA-JET.COM must treat the possibility of exposure as open rather than proven.

What's at stake

For individuals the practical risks centre on the potential misuse of personal or financial information that may have been stored in the company’s systems. If booking or payment data were among the internal files, affected people could face fraudulent transactions, phishing attempts that reference genuine travel details, or identity-related fraud. For the organisation the stakes include possible operational disruption, regulatory scrutiny under data-protection rules, and erosion of customer confidence in a sector where safety and reliability are central selling points. Because the scale of any theft is unknown, both the company and its customers face a period of uncertainty until more precise information becomes available.

What to do if you're exposed

Anyone who has booked travel, transported a vehicle or otherwise shared personal details with SEA-JET.COM should monitor bank and credit-card statements for unfamiliar charges and consider placing a fraud alert with credit-reference agencies. Passwords used for the company’s booking portals or related email accounts should be changed, and multi-factor authentication enabled wherever it is offered. It is also prudent to treat unsolicited messages that reference ferry bookings with caution, as threat actors sometimes use stolen data for targeted phishing. Readers can run a free exposure scan of their email address to check whether their information has already appeared in known breach data sets; such a scan provides an early indication of whether further protective steps are warranted.

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