Was OAB hit by ransomware?

OAB was listed by the Incransom ransomware operation (Brazil), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Incransom ransomware group?

Incransom is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the OAB breach?

Incransom published data attributed to OAB. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Ordem dos Advogados do Brasil - Seção São Paulo (OAB-SP)

listed as OAB · Claimed by Incransom · listed 5 months ago

Age

since listed · data leaked

Status timeline

ListedJan 23, 2026
Data leakeddate unknown

At a glance

Group: Incransom
Status: Data leaked
Country: Brazil
Listed on leak site: Jan 23, 2026

About the victim

AI dossier — public-source company profile

The Ordem dos Advogados do Brasil – Seção São Paulo (OAB-SP) is the largest section of the Brazilian Bar Association, representing legal professionals across the state of São Paulo. It provides services including a legal library, digital certification, public information on legal fees, and judicial assistance. The organization also hosts events and conferences to promote legal dialogue and protect the rights of lawyers.

Industry: Legal Professional Association
Address: São Paulo, Brazil

Attack summary

Severity: high — Data has been published by the threat actor from a major professional legal association, likely containing PII of thousands of registered lawyers and potentially sensitive legal/certification records. The scale of OAB-SP membership (one of the largest bar sections in the world) amplifies the impact.

The Incransom group claims to have attacked OAB-SP and has published data ('data_published' status), suggesting exfiltration of organizational data; the leak post does not specify encryption or detail the precise data categories exfiltrated.

high

Data the group says was taken

AI dossier — extracted from the leak post

Member/lawyer personal data
Legal library records
Digital certification data
Legal fee and judicial assistance information
Organizational event and conference records

What the group claims

The Ordem dos Advogados do Brasil - São Paulo serves as the largest section of the Brazilian Bar Association, tirelessly supporting and defending the legal profession. It provides various services including a legal library, digital certification, and public information on legal fees and judicial assistance. OAB SP hosts numerous events and conferences to foster legal dialogue, innovation, and the protection of the rights of lawyers. Its intended clients include legal professionals across São Paulo, as well as the broader community seeking legal assistance and information.

Sources

Leak posthttp://incblog6qu4y4mm4zvw5nrmue6qbwtgjsxpw6b7ixzssu36tsajldoad.onion/blog/disclosures/697066778f1d14b7433e2170

Source

Indexed 5 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 Incransom

Incransom is a ransomware group that emerged in August 2023, operating with primarily financial motivations as evidenced by their targeting of high-value sectors across multiple developed nations. The group's origin and specific affiliations remain undocumented by major threat intelligence organizations, though their operational patterns suggest they likely operate independently rather than as a ransomware-as-a-service model. With 734 documented victims, Incransom has demonstrated a preference for targeting organizations in the United States, Canada, United Kingdom, Germany, and Australia, with particular focus on healthcare, technology, business services, and manufacturing sectors, though their attack methodology and specific technical capabilities have not been extensively documented by established security researchers or government agencies. The group's notable campaigns and specific high-profile victims have not been publicly detailed by CISA, FBI, Mandiant, or other reputable threat intelligence sources, suggesting either operational security effectiveness or limited visibility into their most significant operations. Based on available intelligence, Incransom appears to remain active as of recent reporting periods, though comprehensive analysis of their current operational status requires additional documentation from established threat intelligence sources. The group has been linked to 829 public disclosures across our corpus. First observed on a leak site on August 9, 2023; most recent post June 11, 2026. The operation is currently active.

Also tracked as: inc ransom.

Timeline of this disclosure

January 23, 2026OAB listed by Incransomon the group's public leak site

Other recent disclosures by Incransom

Incransom has been linked to 829 public victims on Darkfield. A sample of the most recent:

See the full Incransom dossier →

Sector and geography

Geographically, OAB is reported in Brazil, a country with 319 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Incransom means OAB 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 Incransom'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.