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high severity June 29, 2023 · 3 min read Unverified claim — what this is

PROSKAUER.COM Listed by clop Ransomware Group

If you are a customer of Proskauer.Com, here’s what is being claimed, and what it would mean for you.

It’s our business to understand yours - Proskauer Rose LLP

— from Clop’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.
PROSKAUER.COM Listed by clop Ransomware Group

On June 29, 2023, the law firm Proskauer Rose LLP appeared on the leak site operated by the Clop ransomware group. The listing states that internal files were exfiltrated during a ransomware attack on proskauer.com. The disclosure does not specify the number of records affected or detail the exact contents of the stolen data.

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Primary Disclosure Details

The Clop leak site listing states that Proskauer Rose LLP suffered a ransomware incident in which attackers extracted internal files. No victim count is provided, and the posting does not enumerate specific data types such as client records, employee information, or financial documents. The notice simply states that data was taken and gives the firm a deadline to negotiate before further publication. This matches the group’s standard public-facing extortion method of listing victims on their dark-web portal hosted via an onion address.

Internal files exfiltrated is the only description offered. The listing does not claim that customer personally identifiable information was stolen, yet the nature of a global law firm’s internal documents means sensitive correspondence, contracts, and personal details are likely present.

Why This Matters for You and Your Family

When a major law firm’s internal network is breached, anyone who has ever been a client, employee, vendor, or opposing party in litigation involving Proskauer may have their information exposed. That includes names, addresses, Social Security numbers, financial records, medical details in certain cases, and private communications. Even if you never directly hired the firm, your data can appear in case files, discovery materials, or vendor lists.

June 29, 2023 marks the moment the public could begin searching for leaked Proskauer documents. Once files appear on a ransomware leak site, copies spread quickly to other criminal forums. Your information can be reused for identity theft, tax fraud, or targeted phishing long after the initial posting.

Doxxing and Identity-Chain Risks

Legal firms store rich relationship data that links email addresses, phone numbers, home addresses, and employer details. Attackers routinely combine these fragments with information from other breaches to build complete identity profiles. A single leaked email from this incident can unlock additional accounts if the same password was reused elsewhere.

Children’s information is not immune. Family legal matters, guardianship records, or school-related documents sometimes reside in law-firm systems. A stolen file that lists a parent’s email alongside a child’s date of birth or gaming username creates a direct path to doxxing. Gaming accounts tied to the same household address become high-value targets because they often share authentication methods with adult accounts.

Clop’s Known Track Record

Public reporting attributes the emergence of Clop (also styled CL0P) to 2019. The group gained notoriety for exploiting vulnerabilities in file-transfer software such as MOVEit and GoAnywhere. Notable prior victims include large corporations, healthcare providers, and other law firms. Their typical playbook involves initial access through unpatched remote-access software or phishing, followed by extensive exfiltration of internal shares before deploying ransomware. Rather than encrypt-and-demand in every case, Clop frequently relies on double-extortion: threatening to publish stolen data if payment is not received. The group’s leak site serves as both a shaming platform and a marketplace for unsold data.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, then use the cleanup of Warden to remove what you can.
  • Rotate any password you ever used at proskauer.com or associated domains anywhere it has been reused, and switch to 2FA through an authenticator app instead of SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure of your information is caught in hours rather than months.
  • Cover the household with DoxxScan family coverage that extends to dependents and children’s gaming accounts that often chain back to the same address and credentials.
  • Let remediation specialists handle takedown requests across data brokers and forums where leaked Proskauer documents may surface.

The breach of Proskauer Rose LLP illustrates how quickly sensitive professional data becomes raw material for identity thieves. Acting promptly limits how far attackers can travel down the chain that begins with this single listing. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1B+ breach records and 100+ platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts. Start your DoxxScan trial today to close the gaps this incident and future ones can exploit.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo
value redacted in this samplephone, household, property recordsBeenVerified
value redacted in this sample582 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach
unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

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Report details & sourcing

Severity High
Disclosed June 29, 2023
Last reviewed August 8, 2026
Affected Unconfirmed
Unverified claim — what this report is
This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.
Editorial & sourcing policy
GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.
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