On August 29, 2025, Delta Information Systems appeared on the leak site of the cephalus ransomware group. The attackers claim to have stolen the company’s software and hardware source code along with more than 800 GB of internal data. They have offered the material for sale and said a public download link would be posted soon.
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What Public Reporting Shows
Public reporting on the ransomware.live portal shows the listing under the exact name “Delta Information Systems@cephalus.” The group states it obtained both proprietary code and a large volume of internal files during a ransomware incident. No specific list of stolen file types has been independently verified, and the precise number of people whose personal information may be contained in the 800 GB remains unknown. The attackers have not yet published the full archive but have invited interested parties to contact them directly to purchase the data.
Why This Matters for You and Your Family
When a company that develops software or hardware is breached, the exposed data often includes employee records, customer contracts, partner details, and internal email correspondence. If your employer, your child’s school, your doctor, or any service you use works with Delta Information Systems, your information could be inside that 800 GB. Once sold on criminal forums, the material can be used for identity theft, phishing campaigns, or to launch further attacks against anyone whose details surface. Ordinary families are routinely swept up in these incidents because corporate networks hold personal data on far more people than just direct customers.
The Doxxing and Identity-Chain Risks
Stolen internal files frequently contain spreadsheets that link names, email addresses, phone numbers, and sometimes home addresses. Attackers combine this information with usernames found in the code repositories or configuration files. The result is an identity chain that can reveal your online handles, your children’s gaming accounts, and real-world identities in a single dossier. Credential leaks of this kind regularly cascade into account takeovers on gaming platforms, social media, and email, giving criminals the raw material for doxxing, harassment, or financial fraud.