addconsult.nl Listed by lockbit3 Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

Ransomware groups continued through 2022 to publish victim names on dedicated leak sites as a pressure tactic, turning private network intrusions into public listings that organisations and individuals must then assess. In that environment, the appearance of a company domain on such a site is often the first concrete signal that data may have left its intended systems.

On 20 July 2022, addconsult.nl was listed by the lockbit3 ransomware group. The group claims to have stolen internal data in a ransomware attack. Public detail remains limited: the number of people affected is unknown, and the precise contents of the material have not been independently confirmed beyond the group's assertion that internal files were exfiltrated.

Inside the incident

According to the available record, addconsult.nl appeared on the lockbit3 leak site on or around 20 July 2022. The listing itself constitutes the group's claim that it had conducted a ransomware attack and removed internal files from the organisation's systems. No further operational details—such as the initial access vector, the duration of any dwell time, the volume of data taken, or whether encryption was also deployed—have been disclosed in the public summary. The number of individuals whose information may be involved is likewise unreported. What is stated is simply that internal files were exfiltrated and that the victim name was posted on the leak site as part of the group's usual publication practice.

Because the record rests on the leak-site listing, the incident should be treated as an unverified claim by the threat actor unless and until the organisation or independent investigators provide corroboration. No dollar figures, file counts, or sample documents have been supplied in the facts available for this account.

Inside lockbit3

Lockbit3 is the name associated with a prolific ransomware operation that, by 2022, had established a well-documented pattern of double-extortion attacks. The group typically gains access to a victim network, steals data, deploys ransomware to encrypt systems, and then threatens to publish the stolen material on a dedicated leak site if payment is not made. Listings on that site serve both as proof of theft and as a means of applying reputational and regulatory pressure.

Public reporting over several years has shown lockbit3 (and its earlier iterations) using affiliate models in which multiple operators conduct intrusions under a shared brand and infrastructure. The group has been linked to attacks across many countries and sectors, frequently posting victim names, countdown timers, and occasional data samples. None of that general history, however, supplies specific proof about the addconsult.nl listing beyond the claim that internal data was taken. The appearance of a name on the site remains an assertion by the actors themselves.

addconsult.nl and its sector

addconsult.nl is a Dutch organisation operating under a .nl domain, consistent with a professional services or consulting firm based in the Netherlands. Firms of this type commonly handle client projects, internal administrative records, contracts, correspondence, and operational documents. They may also process personal data relating to employees, contractors, or clients in the ordinary course of business.

A breach involving such an organisation matters because consulting and advisory businesses often sit at the intersection of multiple clients and supply chains. Even when the exact data set is unknown, the compromise of internal files can expose commercially sensitive material, credentials, or personal information that third parties entrusted to the firm. The consequences therefore extend beyond the organisation itself to anyone whose records were stored or processed in its systems.

The information in question

The public record states only that internal files were exfiltrated in a ransomware attack. No inventory of specific data types—such as names, contact details, financial records, or authentication credentials—has been released or confirmed. Organisations in the consulting and professional-services sector typically hold project documentation, internal communications, employee information, and client-related files; any of these could in principle have been among the material the group claims to possess. Because those contents remain unconfirmed, it is not possible to state as fact what was or was not taken. Readers should treat the exposure as potential rather than fully characterised.

What's at stake

For individuals, the principal risks are secondary misuse of any personal or contact data that may have been present in the internal files—phishing, social-engineering attempts that reference genuine internal details, or longer-term identity-related fraud if sufficient identifiers were included. Without a confirmed data inventory, the severity for any single person cannot be quantified, yet the prudent assumption is that vigilance is warranted.

For the organisation, the stakes include operational disruption, potential regulatory notification duties under European data-protection rules, reputational harm from the public listing, and the cost of investigation and remediation. Clients and partners may also face indirect exposure if their information resided in the stolen files. These outcomes follow from the nature of ransomware claims even when technical particulars stay undisclosed.

What to do if you're exposed

If you have a past or present relationship with addconsult.nl—as an employee, client, or contractor—monitor account statements and email for unexpected activity, and treat unsolicited messages that reference the firm or its projects with caution. Change passwords on any related accounts, especially if you reused credentials, and enable multi-factor authentication where it is available. Consider placing fraud alerts with relevant credit or identity services if you believe sensitive personal data may have been involved. Because the exact scope remains unknown, a practical additional step is to run a free exposure scan of your email address against known breach data sets; this can indicate whether your address has already appeared in circulating collections and help prioritise further monitoring.

AICompiled with AI assistance from public sources and published under our editorial standards.