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high severity October 21, 2024 · 4 min read Unverified claim — what this is

mkarrari.com.br Listed by ransomhub Ransomware Group

If you are a customer of mkarrari.com.br, here’s what is being claimed, and what it would mean for you.

mkarrari.com.br was listed on Ransomhub's leak site. Ransomhub claims to have stolen internal data. This is the group's claim, not a confirmed finding.

mkarrari.com.br Listed by ransomhub Ransomware Group

On October 21, 2024, Brazilian technology firm MK Arrari appeared on the leak site operated by the RansomHub ransomware group. The listing states that internal files were exfiltrated during a ransomware attack. The company, which provides software development, IT consulting, and digital transformation services, has not yet published a public breach notification quantifying how many individuals or records may be affected.

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Details from the Leak Site

The RansomHub portal lists MK Arrari under a dedicated entry dated October 21, 2024. It claims the attackers successfully stole internal files but does not specify the volume or exact nature of the data. The disclosure indicates that the company was hit by a ransomware operation in which data was exfiltrated prior to encryption or as part of a double-extortion tactic. No sample files have been published at the time of writing, and the listing does not detail whether customer records, employee information, contracts, or source code were taken. The ransomhub leak site (via ransomware.live) remains the primary public source.

Why This Matters for You and Your Family

When a technology services provider like MK Arrari suffers a breach, the ripple effects reach far beyond the company itself. Clients who entrusted personal or business data to the firm may now face unintended exposure. If you or any member of your family have interacted with Brazilian companies that use MK Arrari’s software development or IT consulting services, your information could be among the internal files now held by criminals. Even when exact record counts remain unknown, the precedent is clear: ransomware groups increasingly target service providers to harvest data on the customers those providers serve.

The Doxxing and Identity-Chain Risks

Internal files from an IT consulting firm frequently contain spreadsheets of client contacts, email addresses, phone numbers, project notes, and sometimes copies of contracts or invoices. Once such data leaves controlled environments, it can be cross-referenced with other breaches to build detailed profiles. A single leaked work email can link to personal accounts, home addresses, and family members. These chains often extend to children’s online identities, including gaming accounts that reuse the same passwords or recovery addresses. The result is accelerated doxxing that can lead to targeted phishing, account takeovers, or even physical stalking. Credential leaks of this type routinely cascade into gaming-platform compromises because teenagers and parents alike tend to reuse passwords across work, personal, and entertainment services.

RansomHub’s Known Track Record

Public reporting attributes RansomHub’s emergence to early 2024. The group has since claimed responsibility for attacks on organizations across multiple continents, often focusing on mid-sized businesses in technology, healthcare, and professional services. Their typical playbook involves initial access through compromised credentials or exploited remote desktop services, followed by exfiltration of sensitive files before deploying ransomware. RansomHub then uses a double-extortion model: demanding payment to prevent file publication and offering “proof” of deletion. The group maintains an active leak site where it posts victim names and, in some cases, sample data to pressure payment. While exact success rates are difficult to confirm, their rapid addition of new victims suggests an efficient operation that continues to evolve its tooling and targeting methods.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, including cleanup of exposed records.
  • Rotate any password you ever used at MK Arrari or with their clients anywhere it is reused, and switch to 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 that often chain back to the same credentials or addresses.
  • Let remediation specialists handle takedown requests across data brokers and leak sites on your behalf while you focus on securing accounts.

The speed with which ransomware groups like RansomHub publish victim data leaves little room for delay. Treating this incident as a personal signal to lock down your digital footprint now can prevent it from becoming part of a larger identity compromise later. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts. Start your DoxxScan trial today and close the gaps criminals count on.

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 October 21, 2024
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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