qsi-q3.de Listed by lockbit3 Ransomware Group

On February 05, 2023, German laboratory company Quality Services International GmbH (QSI), part of the Tentamus Group, appeared on the public leak site of the LockBit 3.0 ransomware operation. The listing states that internal files were exfiltrated during a ransomware attack; the exact number of records affected and the full scope of data remain undisclosed by both the attackers and the victim.

Primary Disclosure Details

The LockBit 3.0 leak page, archived via ransomware.live, lists QSI under the domain qsi-q3.de and claims successful data theft from the accredited testing laboratory. The disclosure indicates that internal files were taken but provides no inventory of the specific documents, no customer database size, and no sample data. QSI has not published a formal breach notification quantifying impact or naming the precise systems compromised. Public reporting on LockBit 3.0 shows the group routinely posts victim names and countdown timers once initial extortion demands are ignored.

Why This Matters for You and Your Family

When a laboratory that performs testing and analysis for businesses and individuals is breached, the stolen internal files can easily contain names, addresses, contact details, test results, or contract information tied to real people. Even without exact figures, the exposure of internal files creates downstream risk: your personal or family health-related data, business records, or supplier details could surface in future leaks or be used to impersonate you. Ordinary customers whose samples or records passed through QSI now face the same uncertainty that large corporate victims once kept at arm’s length.

Doxxing and Identity-Chain Risks

Ransomware operators like LockBit rarely stop at one leak. Exfiltrated internal files often include spreadsheets that link customer identities to email addresses, phone numbers, and sometimes payment records. These fragments become the starting point for doxxing chains: attackers or resale buyers cross-reference the data with other breaches to map your online handles to your real name and home address. Credential leaks of this type also cascade into gaming accounts belonging to you or your children, where the same email-password combination grants entry to Discord, Steam, or Roblox profiles that reveal even more personal details.

LockBit 3.0 Track Record

Public reporting attributes LockBit’s emergence to 2019, with the rebranded LockBit 3.0 appearing in mid-2022. The group has targeted hospitals, manufacturers, logistics firms, and laboratories across dozens of countries. Their standard playbook involves initial access through compromised remote desktop credentials or vulnerable web applications, followed by rapid exfiltration of sensitive folders before encryption. Extortion combines public shaming on the leak site with direct threats to publish or sell the data if payment is not received. The February 2023 QSI listing fits this pattern exactly.

What to do

• Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by specialists.
• Rotate any password you ever used at QSI or related Tentamus services anywhere it has been reused, and switch on 2FA through an authenticator app rather than SMS.
• Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure surfaces in hours instead of months.
• Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts vulnerable to the same credential chaining.
• Let remediation specialists manage takedown requests for any exposed personal records that appear on broker sites or forums.

The QSI incident demonstrates that laboratory and service-provider breaches now touch ordinary families in concrete ways. Staying ahead requires more than reactive checks; it demands systematic visibility and expert intervention. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and over 100 platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts at risk from cascading credential leaks.