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high severity June 19, 2023 · 3 min read Unverified claim — what this is

absolutecal.co.uk Listed by lockbit3 Ransomware Group

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

Welcome to Absolute CalibrationOriginally founded in 1967 Absolute Calibration has evolved from an excellent pedigree and is now the leading independent calibration and repair laboratory in the UK. We are committed to providing the best calibration...

— from LockBit’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.
absolutecal.co.uk Listed by lockbit3 Ransomware Group

On June 19, 2023, Absolute Calibration Limited, operating as absolutecal.co.uk, appeared on the LockBit 3.0 ransomware leak site. The listing states that internal files were exfiltrated during a ransomware attack on the UK-based calibration and repair laboratory. The company, founded in 1967 and now a leading independent provider in its field, has not publicly quantified the number of records involved or detailed the exact data types beyond the generic description of internal files.

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Reported Details from the Listing

The LockBit 3.0 leak page indicates that Absolute Calibration suffered a ransomware intrusion in which attackers successfully exfiltrated data before encrypting systems. No specific volume of records is published, and the listing does not itemise customer records, employee personal data, or financial information. The disclosure simply states that internal files were taken and offers them for download to visitors of the dark-web portal. As of the publication date, the company had not issued a separate public breach notification detailing the timeline or scope.

Why This Matters for You and Your Family

When a business like Absolute Calibration is breached, anyone who has ever had equipment calibrated, submitted a repair request, or appeared in supplier or employee records may have their information exposed. This can include names, addresses, phone numbers, email addresses, and details that link you to specific transactions or service histories. For ordinary people and families, the exposure creates long-term risk because this kind of business data is rarely considered sensitive until it surfaces in the hands of criminals. Even if you are not a direct customer, shared suppliers or business partners can create unexpected connections that pull your information into the same dataset.

The Doxxing and Identity-Chain Risk

Internal files from a calibration laboratory often contain spreadsheets, invoices, contracts, and contact lists that map names and addresses to phone numbers, email accounts, and sometimes dates of birth or national insurance numbers. Attackers and subsequent buyers can combine these fragments with other leaked data to build complete identity profiles. A single address or phone number found here can link your professional history to personal accounts, social-media handles, and even your children’s gaming usernames if family members share devices or email domains. These chains accelerate doxxing because one confirmed data point makes every subsequent breach far more damaging. Credential leaks of this nature frequently cascade into account takeovers on gaming platforms, where children’s accounts become entry points for further harassment or extortion.

LockBit 3.0’s Known Track Record

Public reporting attributes the LockBit 3.0 variant to a ransomware operation that first emerged in 2019 under the original LockBit name and rebranded through successive versions. The group is known for targeting organisations across multiple countries, including healthcare providers, manufacturers, and professional service firms. Their typical playbook involves initial access through compromised remote desktop credentials or exploited vulnerabilities, followed by rapid exfiltration of documents before deploying encryption. LockBit operators then demand payment to prevent publication, using a double-extortion model that combines data leak threats with operational disruption. The group maintains an active leak site and has listed hundreds of victims, demonstrating a consistent focus on speed and public shaming to pressure targets.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, including any ties to absolutecal.co.uk that may have surfaced in the internal files.
  • Rotate any password you have reused at absolutecal.co.uk or with related suppliers, and immediately enable two-factor authentication using an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure of your data is caught and acted upon within hours.
  • Cover the entire household with DoxxScan family protection, which extends to dependents and children’s gaming accounts that often chain back to the same addresses or parent emails leaked in business breaches.
  • Let DoxxScan remediation specialists handle takedown requests for any exposed personal documents or broker listings that appear after this incident.

The incident underscores that even specialist laboratories holding seemingly routine business records can become gateways to personal exposure for thousands of individuals. Staying ahead requires more than reactive checks; it demands ongoing visibility into how your information travels across the internet. DoxxScan by GalaxyWarden delivers that visibility through continuous monitoring, AI-powered identity-chain mapping, and hands-on remediation by specialists who manage the cleanup for you and your family. Start your DoxxScan trial today and close the gaps before the next leak appears.

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 19, 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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