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Cyber Threat
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Ransomware victim Other

tcadarwin

Listed by Hyflock on · organisation based in Australia

tcadarwin.com.au

Disclosed
Nov 10, 2026
Leak-site listing date
Threat group
Hyflock
15 victims listed
Country
Australia
#10 most targeted
Sector
Other

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for Hyflock. Figures and technique mappings are quoted from the source data, not inferred.

About tcadarwin

is the official website of TCA Accountants & Bookkeepers, a firm based in Darwin, Northern Territory, Australia. The company is a reputable and innovative professional accounting, tax, and business growth advisory firm in the local area. The following is a detailed introduction to the company: Company Overview Year established: 2011. Founders: Co-founded and operated by George Giannikouris and Sarah Giannikouris. George has more than ten years of experience in the tax and accounting industry. Positioning: Committed to becoming the preferred financial and accounting services partner for local Northern Territory residents and small and medium-sized enterprises (SMEs), with the core message of “helping clients work smarter and free up more time to do what they love.” Core features: Keeps pace with technological developments and excels at using digital tools (such as cloud-based systems and automation) to optimise businesses’ financial processes. Core Services TCA provides “one-stop” financial management and business improvement solutions, mainly including: Tax & Accounting: Individual and business income tax returns, company tax returns, and tax compliance and planning for sole traders, trusts, and partnerships. Bookkeeping Solutions: Cloud-based bookkeeping (mainly using Xero), payroll management, Single Touch Payroll (STP), day-to-day business account reconciliations, and remote bookkeeping services. Business Improvement & Automation: Assists SMEs in introducing digital systems, achieving paperless invoice scanning and process automation, and helping businesses reduce costs and improve operational efficiency. Data Analytics & Visualisation: Uses tools such as Microsoft Power BI to provide financial data dashboards for businesses, helping management make wiser strategic decisions. Client Base SMEs: Assists them with day-to-day compliance, tax planning, technology consulting, and business growth issues. High-net-worth individuals (HNWIs): Provides asset structuring planning... [The original text is truncated at this point.]

Source record: ransomware.live

About the Hyflock group

Hyflock has listed 8 victims since September 2026.

Incident analysis

tcadarwin was listed by Hyflock ransomware, a group with 15 victims recorded in this database. The listing appeared on the group's leak site on November 10, 2026.

tcadarwin is based in Australia and operates in the Other sector. Australia ranks #10 worldwide for ransomware disclosures, with 420 victims in this database.

Sector context. Organisations in this sector hold valuable data and operational systems that ransomware groups seek to exploit for financial gain through encryption and data exfiltration.

Hyflock typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was tcadarwin attacked by ransomware?

Yes. tcadarwin was listed as a victim of the Hyflock ransomware group on November 10, 2026. The organisation is based in Australia and operates in the Other sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked tcadarwin?

tcadarwin was attacked by Hyflock ransomware. Hyflock is one of the most active ransomware groups, having claimed 15 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the tcadarwin ransomware attack occur?

The ransomware attack on tcadarwin was disclosed on November 10, 2026. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the tcadarwin ransomware attack?

The specific data stolen from tcadarwin has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Other organisation, tcadarwin likely held sensitive business data, client information, and operational records.

How can organisations protect against Hyflock attacks?

To defend against Hyflock and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.