Union Fa Listed by Deadlock Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

A ransomware group has publicly named Union Fa on its leak site, raising practical questions for clients and contacts of an accounting, tax and consulting firm. No independent confirmation has established that systems were compromised or that any files left the organisation. As of writing, Union Fa has not publicly confirmed the claim.

When a firm that handles financial and tax work appears on such a list, people who shared identity documents, bank details, payroll figures or business records with it need clear, conditional guidance: what is actually claimed, what remains unknown, and what to do if their information was involved. Attribution alone does not prove theft; it does create a reason to watch for misuse.

What is being claimed

Deadlock has listed Union Fa on its leak site. The listing was reported on October 02, 2026. Public material associated with the report links the firm to rogdianakis.gr and identifies Union FA (Union Financial Associates) as owned by Giorgos Rogdianakis, described as CEO. The organisation is characterised as providing accounting, tax and consulting services to businesses.

The number of people affected is unknown. Data types said to be exposed are not disclosed. Method of access, timing of any intrusion, volume of material, and whether any sample was published are likewise undisclosed in the available record. Everything beyond the fact of the listing and the firm’s described line of work should be read as the group’s claim, not as verified inventory.

Who is Deadlock?

Deadlock is known publicly as a ransomware and extortion operator. Groups in this category typically encrypt systems where they can, exfiltrate copies of data, and pressure victims by threatening to publish material on a dedicated leak site if payment is not made. Listings are a form of leverage and marketing; they are not the same as a regulator’s finding or a company’s admission.

Public reporting on Deadlock has described double-extortion patterns common to many contemporary crews: claim of access, threat of leak, and timed pressure. None of that general pattern proves what happened in this specific case. For Union Fa, the only incident-specific assertion in the given facts is that Deadlock listed the company. Claims about what was taken, if anything, remain the group’s assertions unless confirmed elsewhere.

About Union Fa

Union Fa, also referred to as Union FA or Union Financial Associates, is described as a provider of accounting, tax and consulting services to businesses, associated with Giorgos Rogdianakis. Firms in this sector routinely sit between companies and tax authorities, banks, and payroll systems. They often receive identity and registration documents, ledgers, invoices, correspondence with tax offices, and sometimes personal data of employees or directors when preparing filings or advice.

A leak-site listing aimed at such a firm is consequential because the information those practices typically touch can be reused for fraud, impersonation, or further social engineering against clients. That consequence follows from the nature of the work, not from any confirmed loss of files in this incident. The listing itself does not establish how Union Fa’s systems were configured, monitored, or defended.

What data was at risk

The facts do not name exposed data types. Exact contents are unconfirmed. If files were taken from an accounting, tax and consulting practice, organisations in this sector typically hold business financial records, tax filings and supporting schedules, client contact details, and in many cases personal data tied to directors, staff, or sole traders—such as names, addresses, national identifiers, and bank or payment references used for compliance work.

None of that list is an inventory of what Deadlock holds or published regarding Union Fa. It is a conditional description of what similar firms often process. Readers should treat any specific claim about “stolen client databases” or similar as unverified unless the company or a competent authority later confirms it.

The real-world impact

For individuals and businesses that used Union Fa, the realistic risks—if material related to them was copied—include targeted phishing that references real invoices or tax notices, attempts to open credit or divert payments using known company details, and reuse of identity data in fraud. Corporate clients may face secondary pressure if counterparties or staff receive convincing messages that appear to come from the firm’s normal channels.

For the organisation, a public extortion listing can mean reputational strain, client questions, and the cost of investigation whether or not the claim is accurate. Those outcomes flow from the accusation and the sector’s sensitivity, not from a proven breach narrative. Because people affected and data types remain unknown, scale cannot be stated.

If your data was involved

If you were a client or contact of Union Fa and worry your information may have been included in material the group claims to hold, practical steps stay conditional and measured:

• Treat unexpected emails, messages, or calls that cite tax, payroll, or invoice details with extra caution; verify through a channel you already trust.
• Watch bank and card statements and tax accounts for unfamiliar activity; report anomalies promptly to your bank and, where relevant, tax authority.
• Consider credit or fraud alerts if you shared national identifiers or extensive personal data with the firm.
• Change passwords on related portals if you reused them elsewhere, and enable multi-factor authentication where available.
• Keep records of any suspicious contact that appears to reference your work with the firm.

You can run a free exposure scan of your email to check whether that address has already appeared in known breach datasets. That check does not confirm or deny involvement in this listing; it only shows whether your email is present in other compiled collections. Union Fa has not publicly confirmed the claim as of writing, so any response should match Reported Facts as they emerge rather than the attacker’s marketing alone.

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