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NACS (Hong Kong) Limited

listed as nacs.com.hk · Claimed by Krybit · listed 2 months ago

56d
Age
since listed · data leaked

Status timeline

  1. ListedMay 19, 2026
  2. Data leakeddate unknown

At a glance

Group
Krybit
Status
Data leaked
Country
Hong Kong SAR China
Listed on leak site
May 19, 2026

About the victim

AI dossier — public-source company profile

NACS (nacs.com.hk) is a Hong Kong-based corporate and administrative services firm specialising in company formation, legal compliance, and accounting services for international clients. The company operates within the financial and administrative services sector, assisting businesses with incorporation and ongoing corporate governance requirements in Hong Kong. It appears to be a well-established provider catering primarily to cross-border or multinational clientele.

Industry
Corporate & Administrative Services (Company Formation & Accounting)
Address
Hong Kong

Attack summary

Severity: high — The company handles sensitive corporate, legal, and financial records for international clients; confirmed data publication by the threat actor suggests exfiltration of business-sensitive and potentially regulated client data at meaningful scale.

The Krybit ransomware group claims to have attacked nacs.com.hk and has published data (disclosed status: data_published), indicating exfiltration of company and client records; no ransom amount or specific data volume has been stated.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Corporate formation records
  • Client legal documents
  • Accounting records
  • International client information
  • Administrative service files

What the group claims

nacs.com.hk is a Hong Kong-based corporate and administrative services company, specializing in company formation and ma...

The leak post

captured from the group's site
nacs.com.hk is a Hong Kong-based corporate and administrative services company, specializing in company formation and managing the legal and accounting aspects for international clients. The company appears to be well-established within the financial and administrative services sector

Screenshot of the leak post

Leak screenshot for nacs.com.hk

Sources

Source

Indexed 2 months ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About krybit

Krybit is an emerging ransomware group that was first observed in April 2026, operating with apparent financial motivations based on their limited documented attacks against diverse sectors. The group's origin and affiliations remain unclear due to limited public intelligence, and it is unknown whether they operate as a Ransomware-as-a-Service model or as an independent entity. With only four known victims documented across geographically diverse regions including Mexico, Austria, Japan, and Botswana, the group appears to employ broad targeting rather than focused regional or sector-specific campaigns, though their attack methodology, encryption techniques, and data exfiltration practices have not been publicly documented by major security firms or law enforcement agencies. No notable high-profile campaigns or significant ransoms have been publicly reported, and no law enforcement actions against the group have been documented. Given the recent emergence of this group and extremely limited public reporting, Krybit's current operational status and capabilities remain largely unknown to the broader cybersecurity community. The group has been linked to 72 public disclosures across our corpus. First observed on a leak site on April 3, 2026; most recent post July 8, 2026. The operation is currently active.

Timeline of this disclosure

  • May 19, 2026nacs.com.hk listed by krybiton the group's public leak site

Other recent disclosures by krybit

krybit has been linked to 72 public victims on Darkfield. A sample of the most recent:

See the full krybit dossier →

Sector and geography

Geographically, nacs.com.hk is reported in Hong Kong SAR China, a country with 61 ransomware disclosures in our corpus.

If your organisation is affected

A listing by krybit means nacs.com.hk appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Monitor for the data appearing on krybit's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.