CLONARTE Listed by 8base Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On June 10, 2023, the Brazilian printing company CLONARTE was listed by the 8base ransomware group, which claimed to have exfiltrated internal files in a ransomware attack. Public detail on the incident remains limited: the number of people affected is unknown, and no further confirmation of the group's claims has been widely established beyond the listing itself.

For a firm that handles corporate printing and outsourcing work, any exposure of internal files raises practical concerns for the business and potentially for clients whose materials or related records may have been involved. What is known so far rests primarily on the threat actor's public claim rather than independent verification of scope or contents.

Inside the incident

According to available reporting, CLONARTE appeared on 8base's leak site on or around June 10, 2023. The group asserted that internal files had been exfiltrated as part of a ransomware attack. No public figures have been given for the volume of data, the duration of any intrusion, the initial access method, or whether encryption of systems occurred alongside theft. The number of individuals or client organisations potentially touched by the incident is undisclosed.

Because the primary public signal is the listing itself, the incident should be treated as an unverified claim by the group unless and until CLONARTE or independent investigators provide corroborating detail. No dollar amounts, file counts, or specific timelines beyond the reported listing date have been furnished in the facts available.

Who is 8base?

8base is a ransomware operation that became more visible in 2022 and 2023. Like many contemporary groups, it has typically followed a double-extortion model: encrypting victim systems while also copying data and threatening to publish it on a dedicated leak site if payment is not made. The group has listed organisations across multiple sectors and geographies, often posting sample files or directories to pressure victims.

Public reporting on 8base has described relatively standardised ransomware tactics rather than highly customised, high-profile campaigns against a single industry. Listings on its site constitute claims by the actors; they do not by themselves prove the full extent of access or the sensitivity of every file taken. In this case, 8base's listing of CLONARTE is the asserted link between the group and the company; no additional specific statements by 8base about this victim beyond the fact of the listing and the reference to internal-file exfiltration are part of the established record here.

CLONARTE and its sector

CLONARTE is a printing company that has operated since 2005. It works in digital printing technologies and printing outsourcing, serving corporate clients and offering both in-house production and equipment-rental arrangements so that clients can meet specialised or individual requirements. Its public presence indicates a Brazil-based operation focused on business-to-business print services.

Organisations in commercial printing and outsourcing routinely handle job specifications, artwork or design files, client contact and billing information, production schedules, and internal operational records. A breach affecting such a firm is consequential because print providers often sit in the middle of supply chains: they receive materials from many customers, store work-in-progress data, and may retain historical job archives. Even when the core product is physical print, the supporting digital files and business records can contain commercially sensitive or personally identifiable information.

What data was at risk

The facts state that internal files were exfiltrated in a ransomware attack. No itemised inventory of those files—such as customer databases, financial records, employee data, or specific document categories—has been publicly disclosed in the material available. Exact contents therefore remain unconfirmed.

Companies of this type typically hold client job files and specifications, contracts or order histories, employee and contractor details, invoices and payment records, and internal operational documents. Any of those categories could in principle have been among internal files, but it would be inaccurate to assert that particular data types were exposed when they have not been named. Readers should treat the exposed set as "internal files" only, pending further official detail.

Why it matters

For people and organisations that have worked with CLONARTE, the practical risks depend on what those internal files actually contained. If client project materials or contact details were included, there could be exposure of commercial information or personal data usable in targeted phishing or social-engineering attempts. If employee or administrative records were taken, individuals might face risks of identity misuse or unwanted contact. Because the precise contents and the number of people affected are unknown, the scale of harm cannot be quantified from public facts alone.

For the company itself, a ransomware incident that includes data theft can disrupt operations, damage client trust, and create ongoing legal or regulatory obligations depending on the jurisdictions and data types involved. Even without confirmed encryption of production systems, the claim of exfiltration alone can require notification, investigation, and remediation effort. The absence of public counts or confirmed data categories does not eliminate those consequences; it simply means affected parties must proceed on limited information and watch for official updates from the organisation.

Were you affected?

If you are a current or former client, employee, or partner of CLONARTE, consider practical steps: monitor communications for unusual requests that reference print jobs or company relationships; review financial and account statements for unexpected activity; and treat unsolicited messages that claim to relate to this incident with caution. Official notice, if any is required or issued, would come from the company itself rather than from threat-actor sites.

You can also run a free exposure scan of your email address to check whether your information has already surfaced in known breach datasets. That step does not confirm or rule out involvement in this specific incident, but it can help you see whether your credentials or personal details appear in broader collections of leaked data and decide whether further password changes or monitoring are warranted.

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