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Cyber Threat
CTI Academy Sponsor CTI Academy
Ransomware victim Financial Services

YYC Advisors

Listed by Hyflock on · organisation based in Canada

yycadvisors.com

Disclosed
Oct 13, 2026
Leak-site listing date
Threat group
Hyflock
8 victims listed
Country
Canada
#3 most targeted
Sector
Financial Services

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.

On 13 October 2026, cyber threat intelligence group Hyflock listed YYC Advisors, a Malaysian accounting firm, on its dark web leak site. YYC specializes in tax and audit services for SMEs and growing companies, offering comprehensive business consulting.

About YYC Advisors

YYC Advisors (YYC Group) is a long-established local accounting and comprehensive business consulting group in Malaysia, focusing on a "one-stop" service for tax + audit + business advisory. It mainly serves SMEs and growing companies and also deals with cross-border expansion, M&A succession, and digital software. 1. Basic Overview Founded: 1974, by Yap Seong Fatt, starting from a single table in Pudu, Kuala Lumpur Headquarters: No.32 & 34, Lorong Thambi 2, off Jalan Brunei, 55100 Kuala Lumpur, Malaysia; Phone: +603‑9078‑2868 Size: According to the official site, 1,100+ employees, serving 20,000+ clients, conducted 7,000+ training sessions; offices cover major Malaysian cities like Kuala Lumpur, Selangor, Penang, Johor Bahru, as well as Singapore, and some sources mention Hong Kong Position: One of the top ten local accounting firms in Malaysia, with a focus on the SME market Capital background: In 2019, OCBC Bank invested in its non-audit business; later, it reached a strategic investment/growth partnership with Singapore's SeaTown Private Capital for professional services M&A expansion in Southeast Asia Website: yycadvisors.com 2. Core Services (by line) Tax: Corporate/personal tax compliance and planning, SST, transfer pricing, tax audits and investigation responses, Malaysia e-invoicing (MyInvois/e-Invoice) implementation Audit & Accounting: YYC & Co PLT licensed audit; outsourced bookkeeping, cloud accounting (Xero, etc.), financial statements, payroll outsourcing Corporate & Business Advisory: Company registration/company secretary, M&A, deal structuring, financial due diligence, business valuation, IPO support, internal audit, market research, business succession Digital Software: emplX (HR/payroll cloud), Smart New Retail (retail/F&B POS), cloud ERP related Training & Membership: Winning Strategy Academy, taxPOD (tax subscription/live streaming/micro-courses), for business owners and finance professionals ...,We've handled a total of 300GB of data, and here we show 6GB as proof. For the rest of the data, please explain your purpose and DM us to discuss

Source record: ransomware.live

About the Hyflock group

Hyflock has listed 8 victims since September 2026.

Incident analysis

YYC Advisors was listed by Hyflock ransomware, a group with 8 victims recorded in this database. The listing appeared on the group's leak site on October 13, 2026.

YYC Advisors is based in Canada and operates in the Financial Services sector. Canada ranks #3 worldwide for ransomware disclosures, with 968 victims in this database.

Sector context. Financial sector organisations are targeted for their access to funds, sensitive financial data, and the reputational damage a public breach can cause. Regulatory requirements also increase recovery costs.

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 YYC Advisors attacked by ransomware?

Yes. YYC Advisors was listed as a victim of the Hyflock ransomware group on October 13, 2026. The organisation is based in Canada and operates in the Financial Services sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked YYC Advisors?

YYC Advisors was attacked by Hyflock ransomware. Hyflock is one of the most active ransomware groups, having claimed 8 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the YYC Advisors ransomware attack occur?

The ransomware attack on YYC Advisors was disclosed on October 13, 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 YYC Advisors ransomware attack?

The specific data stolen from YYC Advisors 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 Financial Services organisation, YYC Advisors likely held financial records, client data, and transaction histories.

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.