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 31 public disclosures across our corpus. First observed on a leak site on April 3, 2026; most recent post May 19, 2026. The operation is currently active.

Timeline of this disclosure

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

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, nacs.com.hk is reported in HK, a country with 23 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

← All victims

NACS (Hong Kong) Limited

listed as nacs.com.hk · Claimed by krybit · listed 2 days ago

Age

since listed · data leaked

Status timeline

Listed
May 19, 2026
Data leaked

At a glance

Group: krybit
Status: Data leaked
Country: HK
Sector: Not Found
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

Sources

Source

Indexed 2 days 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.