YYC Advisors
HYFLOCKThis record tracks a ransomware attack claimed by the HYFLOCK group against YYC Advisors. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAPWindow Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.
Attack Summary
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
Leak Screenshots
5 CAPTUREDCaptured directly from the operator's leak site by our collector, last checked 2026-10-13. Verdict evidence: [M1] 4 photos published
Proof files published by the operator — 4 image(s) harvested from this entry. Content is locked; type and dimensions shown.