Delta Screen & Filtration Listed by lynx Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

Ransomware groups continue to target mid-sized manufacturers and industrial suppliers, treating operational data and internal files as leverage for extortion. In this environment, even specialized firms with limited public profiles can appear on leak sites, raising questions for employees, partners and customers about what may have been taken.

On 29 January 2025, the ransomware group known as lynx listed Delta Screen & Filtration as a victim, claiming to have exfiltrated internal files. Public detail remains limited: the number of people affected is unknown, and no independent confirmation of the claim has been reported. The listing itself is the primary public signal that an incident occurred.

What happened

According to the available record, Delta Screen & Filtration was listed by the lynx ransomware group on 29 January 2025. The group claims that internal files were exfiltrated during a ransomware attack. No further technical details—such as the initial access method, the precise date of intrusion, the volume of data taken, or whether systems were encrypted—have been disclosed in the public summary. The number of individuals potentially affected is listed as unknown. As with most ransomware leak-site postings, the listing constitutes a claim by the threat actor rather than independently verified fact.

The group behind it: lynx

Lynx is a ransomware operation that has been active in the broader threat landscape, typically following the double-extortion model used by many contemporary groups. In this model, operators claim to steal data before encrypting systems and then threaten to publish the material if a ransom is not paid. Public reporting on lynx has described it as a relatively recent entrant that has listed a range of commercial and industrial victims on its leak site. The group’s public statements about any specific victim, including Delta Screen & Filtration, should be treated as unverified claims unless corroborated by the organisation itself or by independent forensic reporting. No additional statements by lynx about this particular incident beyond the listing and the assertion of internal-file exfiltration appear in the available facts.

About Delta Screen & Filtration

Delta Screen & Filtration manufactures specialised flat screens designed for catalyst-support applications. Public descriptions of its products emphasise high rigidity and flatness, precision welding for strength, and continuous-slot designs intended to resist plugging under heavy loads. The company produces screens to customer specifications covering material, size and shape. Organisations of this type typically sit within the industrial-manufacturing and filtration-supply chain, serving process industries that rely on catalyst systems. They commonly hold engineering drawings, customer specifications, supplier records, employee information and internal operational documents. A breach involving such a firm can therefore affect not only the company itself but also the industrial customers and partners that depend on its products and data.

What data was at risk

The facts state that internal files were exfiltrated in a ransomware attack. No more granular inventory—such as whether the files included personal data, financial records, intellectual property, customer lists or employee information—has been publicly disclosed. For a manufacturer of specialised industrial screens, typical holdings would include design files, production records, purchase orders, quality-control documentation and administrative materials. Because the exact contents remain unconfirmed, it is not possible to state with certainty which categories of information were taken. Readers should treat any specific claims about data types beyond “internal files” as unverified unless further official disclosure occurs.

The real-world impact

For individuals whose information may have been present in the exfiltrated files, the practical risks include potential exposure of contact details, employment records or other personal identifiers that could be used in phishing or social-engineering attempts. For the organisation, the consequences can include operational disruption, reputational harm among industrial customers, and the cost of investigation and remediation. Because the scale of the incident and the precise data categories remain unknown, the full extent of impact cannot yet be quantified. Partners and customers of Delta Screen & Filtration may wish to remain alert for unusual communications that reference the company or its products, as threat actors sometimes reuse stolen material in follow-on fraud.

Were you affected?

If you have a relationship with Delta Screen & Filtration—as an employee, contractor, customer or supplier—monitor accounts and communications for signs of misuse. Change passwords on any shared or related systems, enable multi-factor authentication where available, and treat unsolicited requests for information with caution. Because the number of people affected and the exact data types remain undisclosed, there is no public list of individuals to consult. As a practical step, you can run a free exposure scan of your email address to check whether it has already appeared in known breach data sets; such scans do not confirm involvement in this specific incident but can surface other exposures that warrant attention.

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