Disclosure context

About Ciphbit

Ciphbit is a relatively new ransomware group that emerged in September 2023, operating with primarily financial motivations and demonstrating a focused targeting approach across Western nations. The group's origin and potential affiliations remain largely undocumented by major threat intelligence organizations, though their operational patterns suggest they operate as an independent entity rather than a established ransomware-as-a-service model. With limited public documentation from authoritative sources like CISA, FBI, or major security research firms, specific details regarding their attack methodology, initial access vectors, and encryption techniques have not been comprehensively analyzed or reported in open-source intelligence. The group has claimed responsibility for attacks against 36 documented victims, primarily concentrating their operations in the United States, Italy, France, Germany, and Portugal, with a notable preference for targeting business services, manufacturing, healthcare, and construction sectors. No major high-profile campaigns or significant law enforcement actions against Ciphbit have been publicly documented by authoritative sources as of current reporting. Based on available intelligence, Ciphbit appears to remain active as of late 2023, though their relatively recent emergence and limited public documentation make definitive status assessments challenging without additional confirmed reporting from established threat intelligence sources. The group has been linked to 36 public disclosures across our corpus. First observed on a leak site on September 14, 2023; most recent post February 10, 2026. The operation is currently active.

Timeline of this disclosure

September 24, 2025António Belém & António Gonçalve listed by Ciphbiton 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, António Belém & António Gonçalve is reported in Portugal, a country with 11 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

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AB&AG SROC – António Belém & António Gonçalves

listed as António Belém & António Gonçalve · Claimed by Ciphbit · listed 8 months ago

Age

since listed · data leaked

Status timeline

Listed
Sep 24, 2025
Data leaked

At a glance

Group: Ciphbit
Status: Data leaked
Country: Portugal
Sector: Not Found
Listed on leak site: Sep 24, 2025

About the victim

AI dossier — public-source company profile

AB&AG SROC (António Belém & António Gonçalves) is a Portuguese independent financial audit firm (Sociedade de Revisores Oficiais de Contas) based in Carnaxide, near Lisbon. The firm provides statutory and independent financial audit services to clients in Portugal. As a registered SROC, it operates under the oversight of Portugal's Order of Statutory Auditors (OROC).

Industry: Audit & Accounting Services (SROC – Statutory Audit Firm)
Address: Rua Amélia Rey Colaço nº 40, Piso 2, Sala 23 B, 2790-017 Carnaxide, Portugal

Attack summary

Severity: high — The victim is a statutory audit firm handling confidential client financial data; data_published status indicates confirmed exfiltration and public release of potentially sensitive financial and corporate records belonging to the firm and its clients.

The Ciphbit ransomware group claims to have attacked AB&AG SROC and has disclosed the data (status: data_published). No specific details about encryption, exfiltration methods, or data volume were provided in the leak post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Financial audit records
Client financial statements
Internal business documents

Original description

AI-summarised, not from the leak post

N/A

Sources

Victim sitewww.abag-sroc.pt

Source

Indexed 8 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.