Was BigID hit by ransomware?

BigID was listed by the thegentlemen ransomware operation (United States), 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 thegentlemen ransomware group?

thegentlemen 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 BigID breach?

thegentlemen published data attributed to BigID. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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BigID

Claimed by Thegentlemen · listed 5 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedOct 12, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: United States
Sector: Technology
Listed on leak site: Oct 12, 2026

About the victim

AI dossier — public-source company profile

BigID is an enterprise data security platform that identifies and classifies sensitive data across cloud applications, databases, and files. The company serves hundreds of enterprise clients and has recently expanded its focus to AI security, including monitoring shadow AI tools and data access by AI assistants. BigID operates on a subscription model and has approximately 600 employees.

Industry: Enterprise Data Security & Classification Software
Employees: 600

Attack summary

Severity: high — BigID is an enterprise data security platform serving hundreds of clients including major corporations (Telenor, Fiserv). Compromise of their systems could expose sensitive data of multiple downstream customers, representing significant secondary risk. Data published status confirms exfiltration occurred.

The group claims to have exfiltrated data from BigID. No specific details about the scope, type, or volume of exfiltrated data are provided in the post, though the group notes that one client deleted 27,000 sensitive records from 2.5 petabytes of storage.

high

Data the group says was taken

AI dossier — extracted from the leak post

enterprise client data
sensitive records
configuration data

What the group claims

bigid.com Revenue $100 Million BigID is the enterprise data security platform that finds and classifies sensitive data across cloud apps, databases and files, showing where private data lives and who can access it. It now focuses on AI, spotting shadow AI tools and checking what data Copilots and agents reach, and in September 2026 launched AgentIQ letting AI assistants trigger data cleanup and access reviews from Claude, Copilot or ChatGPT. It serves hundreds of enterprise clients like Telenor and Fiserv, one of which deleted 27,000 sensitive records from 2.5 petabytes of storage. Money comes from enterprise subscriptions priced per data source, with $175K as one AWS Marketplace benchmark. Around 600 employees work there after cutting 150 roles in May 2026 to go AI-first. It raised $320M at a $1B+ valuation and owns no factories or stores.

Sources

Victim sitebigid.com
Leak posthttp://tezwsse5czllksjb7cwp65rvnk4oobmzti2znn42i43bjdfd2prqqkad.onion/#BigID

Source

Indexed 5 hours 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 thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 966 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post October 12, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

October 12, 2026BigID listed by thegentlemen on the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 966 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,581 disclosures indexed across all operators we track. Geographically, BigID is reported in United States, a country with 3,176 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means BigID 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.
Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
Monitor for the data appearing on thegentlemen'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.