Skip to content
Back to Blog
high severity February 24, 2025 · 3 min read Unverified claim — what this is

Birdsall Muller LLC Listed by cicada3301 Ransomware Group

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

Birdsall Muller LLC was listed on Cicada3301's leak site. Cicada3301 claims to have stolen internal data. This is the group's claim, not a confirmed finding.

Birdsall Muller LLC Listed by cicada3301 Ransomware Group

On February 24, 2025, law firm Birdsall Muller LLC appeared on the leak site of the cicada3301 ransomware group with 60 GB of internal files listed for public release. The entry shows a countdown timer of 29 days, 22 hours and 26 minutes remaining, indicating the firm has not yet met the group's demands.

Watch Birdsall Muller LLC

Get alerted the next time Birdsall Muller LLC files a breach with any US regulator — the filing, dated and sourced. A free single-company slice of Signals; no account needed.

We’ll email you only about Birdsall Muller LLC’s future breach filings and how to watch a whole vendor list — not general marketing. Unsubscribe any time.

Watching your whole vendor list (up to 500 companies) is GalaxyWarden Signals — $299/mo or $2,990/yr (indicative estimate).

What's Publicly Reported from Reporting

Public reporting on the cicada3301 leak site, tracked by ransomware.live, lists Birdsall Muller LLC as a new victim. The posted data volume stands at 60 GB of exfiltrated internal files. No exact count of individuals whose records are included has been disclosed. The firm's systems were compromised in a ransomware incident that resulted in both encryption and data theft. Available reporting describes typical ransomware behavior in which attackers exfiltrate documents before encrypting networks and then threaten to publish the stolen information unless a ransom is paid.

Why This Matters for You and Your Family

When a law firm suffers a breach, the files often contain sensitive details about clients that go far beyond basic contact information. Tax records, financial statements, Social Security numbers, medical information, divorce papers, and custody agreements can all sit inside a single case folder. If those records reach the public internet, anyone with a grudge, a curious neighbor, or a financial motive can access them. For ordinary families, this means sudden exposure of private life events that were supposed to remain confidential. The 60 GB size suggests a large volume of client matters may be involved, increasing the chance that everyday people are affected even if their names have not yet surfaced in sample leaks.

The Doxxing and Identity-Chain Implications

Stolen legal files rarely stay isolated. A single document can link your name, address, date of birth, phone number, email accounts, and family members' details in one place. Attackers and opportunistic criminals then chain that information across dozens of other platforms. A leaked email leads to password resets on shopping sites, banking apps, or social media. An exposed phone number surfaces in people-search databases. Children's names and school references can appear in the same files, creating pathways to gaming accounts or family photos. These connections form an identity chain that turns one breach into repeated harassment, identity theft, or targeted scams. Credential leaks like this one frequently cascade into account takeovers precisely because legal documents often list passwords, security questions, or account numbers alongside personal identifiers.

Cicada3301's Publicly Known Track Record

Public reporting attributes the cicada3301 ransomware group with activity that emerged in late 2023. The group has listed dozens of organizations across multiple sectors, with a focus on small and mid-sized businesses that hold valuable client data. Notable prior victims include other professional services firms and healthcare providers. Their typical playbook begins with initial access through phishing or exploited remote desktop credentials, followed by extensive network reconnaissance and data exfiltration. Once inside, they encrypt systems and publish samples on their leak site while maintaining a countdown clock. Extortion demands usually combine threats of data publication with offers to delete the files upon payment. The group operates a single leak site and does not appear to maintain a large affiliate program, preferring direct control over operations.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, then use the cleanup to remove what you can.
  • Rotate every password you ever used at Birdsall Muller LLC or any related service, replace it with a unique passphrase, and enable 2FA through an authenticator app rather than text messages.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next time your information appears it is caught within hours instead of 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 or parent email.
  • Let remediation specialists handle takedown requests across data brokers and leak sites for you while you focus on securing your own accounts.

The incident underscores that legal and professional services remain high-value targets whose breaches directly expose the private lives of ordinary clients. Taking concrete steps now limits how far attackers can travel down the identity chain that begins with this 60 GB leak. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children's gaming accounts vulnerable to the same credential-stuffing attacks that follow incidents like this one.

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.

Check your exposure
Birdsall Muller LLC is one listing. Your email is probably in others.
We can’t confirm any single incident against the sources we search, so we won’t pretend to. What we can show you is your own exposure — your email against 13.1B+ leaked records and the sites that publish your address. About 15 seconds. No account, no card.

By running your scan you agree to the Terms and Conditions and the Privacy Policy, and to GalaxyWarden emailing you the results of this scan.

Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed February 24, 2025
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.
Share this Post on X Reddit Email