Was Blaise C. Bender, PC hit by ransomware?

Blaise C. Bender, PC was listed by the Interlock 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 Interlock ransomware group?

Interlock 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 Blaise C. Bender, PC breach?

Interlock published data attributed to Blaise C. Bender, PC. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Blaise C. Bender, PC

Claimed by Interlock · listed 5 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedSep 30, 2026
Data leakeddate unknown

At a glance

Group: Interlock
Status: Data leaked
Country: United States
Sector: Professional Services
Listed on leak site: Sep 30, 2026

About the victim

AI dossier — public-source company profile

Blaise C. Bender, PC is a law firm based in Texas that provides tax planning, mergers and acquisitions, transaction agreements, estate and trust services, and general corporate counsel to clients.

Industry: Legal Services

Attack summary

Severity: critical — Confirmed exfiltration of highly regulated and sensitive data including attorney-client privileged communications, tax records subject to IRC Section 7216 protections, and personal/financial information of multiple clients. Disclosure poses regulatory, legal, and reputational harm to the firm and privacy harm to clients.

The interlock group claims to have exfiltrated confidential client information including tax records, M&A documents, transaction agreements, estate/trust documents, corporate records, and attorney-client communications from the firm's systems.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Client tax records and working papers
Mergers and acquisitions agreements
Transaction agreements
Estate and trust documents
Corporate management records
Attorney-client communications

What the group claims

The law firm of Blaise C. Bender, PC handles confidential client tax records/working papers, mergers and acquisitions (M&A) and transaction agreements, estate/trust documents, corporate management records, and confidential attorney-client communications, and fails to maintain security. Due to this negligent mishandling, we disclose confidential information that will subject Blaise C. Bender, PC to disciplinary action by the Bar/CPA, penalties under Section 7216 of the Internal Revenue Code and the Texas Privacy Act, civil claims for professional negligence/breach of fiduciary duty/breach of contract, and serious damage to our reputation and clients.

Sources

Victim sitebcbenderlaw.com
Leak posthttp://fqxvqwxik4jecowodcysyzxkaquf7ue7klnriitzk3w74547jbsp2sid.onion/index.php?p=

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 Interlock

Interlock is a recently emerged ransomware group that began operations in October 2024, primarily motivated by financial gain through extortion activities targeting organizations across multiple sectors. The group's country of origin and potential affiliations remain unclear given their recent emergence, with insufficient public documentation to determine whether they operate as an independent entity or under a Ransomware-as-a-Service model. Limited public information exists regarding their specific attack methodologies, initial access vectors, or encryption techniques, as major cybersecurity firms and law enforcement agencies have not yet published comprehensive technical analyses of their operations. Since beginning operations, Interlock has reportedly compromised approximately 100 victims, with their targeting primarily focused on organizations in English-speaking countries including the United States, Canada, United Kingdom, and Australia, as well as Italy, while demonstrating a preference for attacking education, manufacturing, healthcare, and public sector entities. The group remains active as of late 2024, though comprehensive threat intelligence profiles from established security research organizations have not yet been published due to the group's recent emergence in the threat landscape. The group has been linked to 129 public disclosures across our corpus. First observed on a leak site on October 13, 2024; most recent post September 30, 2026. The operation is currently active.

Timeline of this disclosure

September 30, 2026Blaise C. Bender, PC listed by Interlock on the group's public leak site

Other recent disclosures by Interlock

Interlock has been linked to 129 public victims on Darkfield. A sample of the most recent:

See the full Interlock dossier →

Sector and geography

This disclosure adds to ransomware activity in the Professional Services sector, which has 17 disclosures indexed across all operators we track. Geographically, Blaise C. Bender, PC is reported in United States, a country with 3,167 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Interlock means Blaise C. Bender, PC 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 Interlock'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.