Cyber Threat Intelligence
LE
Ransomware Victim Business Services

Lewis Baach Kaufmann Middlemiss PLLC

Ransomware attack by Cephalus · Disclosed August 26, 2025 · 🇺🇸 United States

lbkmlaw.com

Date Disclosed
Aug 26, 2025
2025
Threat Group
Cephalus
19 total victims
Country
🇺🇸 United States
Industry
Business Services

Incident Analysis

Lewis Baach Kaufmann Middlemiss PLLC was targeted by Cephalus ransomware, one of the most active ransomware groups in our database with 19 confirmed victims globally. The attack was disclosed on August 26, 2025, when Lewis Baach Kaufmann Middlemiss PLLC appeared on the group's dark web leak site.

Lewis Baach Kaufmann Middlemiss PLLC is based in United States , operating in the Business Services sector. United States ranks #1 globally for ransomware attacks, with 8,271 victims in our database.

Sector context: Business services firms often have access to multiple client environments, making them high-value pivot points for ransomware operators seeking to maximise impact across multiple victim organisations.

Cephalus typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats — paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: May 14, 2026 12:01 UTC.

Frequently Asked Questions

Was Lewis Baach Kaufmann Middlemiss PLLC attacked by ransomware?

Yes. Lewis Baach Kaufmann Middlemiss PLLC was listed as a victim of the Cephalus ransomware group on August 26, 2025. The organisation is based in United States and operates in the Business Services sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Lewis Baach Kaufmann Middlemiss PLLC?

Lewis Baach Kaufmann Middlemiss PLLC was attacked by Cephalus ransomware. Cephalus is one of the most active ransomware groups, having claimed 19 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Lewis Baach Kaufmann Middlemiss PLLC ransomware attack occur?

The ransomware attack on Lewis Baach Kaufmann Middlemiss PLLC was disclosed on August 26, 2025. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the Lewis Baach Kaufmann Middlemiss PLLC ransomware attack?

The specific data stolen from Lewis Baach Kaufmann Middlemiss PLLC has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Business Services organisation, Lewis Baach Kaufmann Middlemiss PLLC likely held sensitive business data, client information, and operational records.

How can organisations protect against Cephalus attacks?

To defend against Cephalus and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.