Next TI Listed by fog Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

When an IT firm that builds digital platforms for banks and finance companies appears on a ransomware group's leak site, the practical stakes land first with the people whose information may sit inside those systems. Customers, employees, and partners of Next TI and the institutions it serves face the ordinary but serious risks that follow any claim of data theft: possible misuse of personal or financial details, targeted phishing, and the long work of checking whether their own records have been exposed.

Public reporting on 19 February 2025 stated that the ransomware group known as fog had listed Next TI. The listing claims that internal files were exfiltrated in a ransomware attack. The number of people affected remains unknown, and further technical detail has not been released. What is known is limited, yet the nature of Next TI's work makes the claim consequential for anyone whose data may have been handled by the company or its clients.

Inside the incident

According to the available public record, Next TI was listed by the fog ransomware group on or around 19 February 2025. The report describes the incident as a ransomware attack in which internal files were allegedly exfiltrated. No confirmed figure for the volume of data, no list of specific file types beyond the general description of internal files, and no statement of how many individuals may be affected have been published. The method of initial access, the duration of any network presence, and whether encryption of systems also occurred remain undisclosed. The listing itself constitutes a claim by the group; independent confirmation of the full scope has not been provided in the public facts.

The same reporting note that mentioned Next TI also referenced other organisations in an extract, but those references do not expand the verified detail available for this particular listing. At present the public picture is sparse: a ransomware claim, asserted data theft of internal files, and an unknown number of people potentially involved.

Inside fog

Fog is a ransomware operation that has been observed publicly since roughly mid-2024. Like many contemporary groups, it typically follows a double-extortion model: encrypting systems where possible while also stealing data and threatening to publish or sell it if a ransom is not paid. Victims are commonly named on dedicated leak sites, and the group has been associated with attacks across multiple sectors and geographies. Public analyses describe the use of common initial-access techniques, living-off-the-land tools, and data-exfiltration tooling before ransomware deployment. Fog has listed organisations of varying sizes; the appearance of a victim name on its site is therefore a claim of compromise rather than an independently verified forensic finding.

Nothing in the public facts attributes specific statements by fog about Next TI beyond the listing itself and the assertion that internal files were taken. Any further claims the group may have made on its site are not detailed in the available record and are not repeated here.

Who is Next TI?

Next TI is an Indonesian IT solutions company that specialises in financial digital platforms serving the banking and multifinance industries. Public descriptions note that it is supported by South Korea's Hana Financial Group. Organisations of this type typically design, implement, and maintain systems that handle customer onboarding, transaction processing, loan or multifinance workflows, and related back-office functions. They therefore sit at the intersection of technology providers and regulated financial institutions.

A breach claim against such a firm is consequential because the data flowing through its platforms can include customer identity information, account or credit details, employee records, and proprietary operational material belonging both to Next TI and to the banks or multifinance companies that use its services. Even when the precise contents of any stolen files remain unconfirmed, the sector context means the potential exposure reaches beyond a single corporate network.

What data was at risk

The public facts state that internal files were exfiltrated in the ransomware attack. No further breakdown of those files—such as customer databases, source code, credentials, or employee records—has been disclosed. The number of people whose information may be present is listed as unknown.

Companies that build financial digital platforms commonly hold or process personal identification data, contact details, financial-account or loan-related information, authentication material, and internal business documents. Whether any of those categories were among the files claimed by fog has not been confirmed. Readers should treat the exact contents as unconfirmed pending further official disclosure.

The real-world impact

For individuals, the primary risks are the familiar ones that follow any unauthorised access to internal corporate files: possible identity misuse, fraudulent account activity, or highly targeted phishing that references genuine details. Because Next TI works with banking and multifinance clients, any customer data that may have been present could increase the credibility of social-engineering attempts. Employees and contractors face similar exposure of personal or employment-related information.

For the organisation itself, a ransomware claim that includes data exfiltration typically brings operational disruption, regulatory scrutiny in the financial sector, contractual obligations to notify clients, and the cost of investigation and remediation. The absence of a confirmed headcount or detailed inventory does not remove these pressures; it simply leaves the scale uncertain. Affected parties must therefore act on the possibility of exposure rather than on a complete map of what was taken.

What to do if you're exposed

If you have a relationship with Next TI or with any bank or multifinance firm known to use its platforms, treat the listing as a prompt for ordinary hygiene rather than panic. Monitor financial accounts and credit reports for unexpected activity. Be sceptical of unsolicited messages that reference the company or request credentials or payments. Change passwords on any accounts that may have shared credentials or reused passwords, and enable multi-factor authentication wherever it is available. Keep records of any suspicious contacts.

You can also run a free exposure scan of your email address to check whether it has already appeared in known breach data sets. That step will not confirm or deny involvement in this specific incident, but it can surface other exposures that warrant attention. Official updates from Next TI or from relevant regulators, if and when they appear, remain the most reliable source for further detail.

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