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high severity October 11, 2023 · 3 min read Unverified claim — what this is

Sobieski Listed by incransom Ransomware Group

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

A Vision For the Future “35 years ago, J. F. Sobieski, Inc. was founded with a clear idea of what we would need for a successful future.”– John F. Sobieski, III, CEO Founded more than thirty-five...

— from INC Ransom’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.
Sobieski Listed by incransom Ransomware Group

On October 11, 2023, construction services company J. F. Sobieski, Inc. was listed on the leak site of the incransom ransomware group. The posting states that internal files were exfiltrated during a ransomware attack. The company has not publicly quantified how many individuals may be affected, nor has it detailed the exact volume or sensitivity of the stolen data.

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Primary Disclosure Details

The incransom leak site entry from October 11, 2023, claims the attackers successfully stole internal files from Sobieski after deploying ransomware. The listing does not specify the number of records involved, the precise data types exposed, or any ransom demand amount. It simply asserts that exfiltration occurred and threatens further publication if demands are not met. No official breach notification from Sobieski had appeared in state regulator filings or on the company website at the time the leak site posting went live.

Why This Matters for You and Your Family

When a local or regional company like Sobieski suffers a ransomware breach, the people whose personal information ends up in the stolen files are often customers, employees, subcontractors, or vendors. Internal files frequently contain names, addresses, Social Security numbers, dates of birth, banking details, and employment records. If your data is among them, it can be sold or published on criminal forums, exposing you and your family to identity theft, tax fraud, and financial account takeovers. Even when exact victim counts remain unknown, the real-world risk is immediate because ransomware operators rarely limit themselves to corporate-only documents.

Doxxing and Identity-Chain Implications

Stolen internal files rarely exist in isolation. A single leaked email address or phone number can be correlated with usernames you use on other services, creating an identity chain that leads directly to you. Attackers and data brokers routinely link workplace records to personal accounts, family member names, and even children’s online profiles. This cascading exposure turns one corporate breach into long-term doxxing risk. Credential leaks of this nature frequently cascade into account takeovers on gaming platforms, where children’s usernames and shared family passwords become easy targets for harassment or further extortion.

Incransom Group Track Record

Public reporting attributes incransom as a ransomware-as-a-service operation that emerged in early 2023. The group follows a double-extortion playbook: encrypt victim systems, exfiltrate sensitive files before encryption completes, then demand payment to prevent data publication. Notable prior victims listed on their leak site have included manufacturing, healthcare, and professional services firms. Their typical initial access methods include phishing emails and exploitation of remote desktop protocols, followed by lateral movement inside corporate networks to locate high-value internal files. The group’s leak site serves as both a shaming mechanism and a sales platform for unsold data.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by the service.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure surfaces in hours rather than months.
  • Rotate any password you used at Sobieski or related vendor portals anywhere it has been reused, and switch to 2FA through an authenticator app instead of SMS.
  • Cover the entire household with DoxxScan family protection that extends to dependents and children’s gaming accounts that often chain back to the same address or parent email.
  • Let remediation specialists perform hands-on takedown requests across data brokers and extortion sites on your behalf.

The Sobieski listing is a reminder that ransomware groups continue to target mid-sized businesses that handle ordinary Americans’ personal information. One breach can quietly feed dozens of downstream identity crimes if left unchecked. Start your DoxxScan trial and combine it with prompt credential hygiene and household-wide coverage to shrink the window between breach and discovery. Its continuous monitoring, AI-powered identity-chain mapping, hands-on remediation by specialists, and family coverage including children’s gaming accounts give you practical defense against the exact exposure chains this incident creates.

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
Sobieski is one listing. Your email is probably in others.
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Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed October 11, 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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