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high severity October 12, 2022 · 3 min read Unverified claim — what this is

marktel.es Listed by lockbit3 Ransomware Group

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

marktel.es was listed on the lockbit3 ransomware leak site. The group claims to have stolen internal data.

— 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.
marktel.es Listed by lockbit3 Ransomware Group

On October 12, 2022, Spanish telecommunications firm marktel.es appeared on the LockBit 3.0 ransomware leak site, with the group claiming to have exfiltrated internal files during a ransomware attack. The listing indicates that anyone whose personal or business data was stored in those systems may now face long-term exposure, even though the exact number of affected individuals remains unknown.

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Primary Disclosure Details

The LockBit 3.0 leak site listing states that marktel.es suffered a ransomware intrusion and that attackers successfully stole internal data. The disclosure does not quantify the volume of records taken, list specific data types beyond “internal files,” or provide a public sample of the allegedly stolen material. It also does not specify the initial access vector or the precise date of compromise. Public reporting on LockBit 3.0 indicates the group typically posts victim names after an initial extortion window expires, which aligns with the October 2022 appearance of marktel.es.

Why This Matters for You and Your Family

When a company that handles customer contracts, billing records, or support tickets is breached, the information stolen can include names, addresses, phone numbers, email accounts, and payment details. Even if marktel.es has not published an official customer notification, the LockBit 3.0 listing means that data may already be in criminal hands. For ordinary households this translates into heightened risk of identity theft, fraudulent accounts opened in your name, or targeted phishing campaigns that reference your real telecom history. Children’s accounts linked to family phone plans or shared addresses are especially vulnerable because gaming usernames and parental email addresses often share the same data chain.

Doxxing and Identity-Chain Risks

Ransomware operators like LockBit rarely stop at simple credential theft. Once internal files leave the victim’s network they frequently appear in underground markets where other criminals combine them with data from previous breaches. This creates persistent doxxing chains: an email from the marktel.es breach can be linked to a gaming handle, which in turn reveals a home address or family member names. The result is accelerated identity exposure that can surface months or years later. Credential leaks like this one routinely cascade into account takeovers on Steam, Roblox, Discord, and other platforms used by children and teenagers.

LockBit 3.0 Track Record

Public reporting attributes the emergence of LockBit 3.0 to early 2022 as a rebranded and upgraded version of the original LockBit operation. The group has targeted organizations across healthcare, education, manufacturing, and telecommunications, often naming victims on its leak site when ransom demands go unpaid. Its typical playbook involves stealthy initial access via phishing or exploited remote desktop services, followed by rapid data exfiltration before encryption. Extortion combines threats to publish stolen files with secondary pressure on partners and customers. While exact success rates are difficult to verify, the volume of victims listed on ransomware.live demonstrates that LockBit 3.0 remains one of the more active ransomware brands.

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 used at marktel.es or any related service and enable 2FA through an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure is caught in hours instead of months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts that can chain back to the same breached address or email.
  • Let remediation specialists handle ongoing takedown requests across data brokers and leak sites on your behalf.

The marktel.es incident underscores that even mid-sized service providers can become gateways to personal exposure long after the initial headline fades. Staying ahead requires more than one-time checks; it demands continuous visibility and expert intervention. DoxxScan by GalaxyWarden delivers exactly that through continuous monitoring across 13.1B+ breach records and 100+ platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts. Source: https://www.ransomware.live/id/bWFya3RlbC5lc0Bsb2NrYml0Mw==

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.

Check your exposure
marktel.es is one listing. Your email is probably in others.
We can’t confirm any single incident against the sources we search, so we won’t pretend to. What we can show you is your own exposure — your email against 13.1B+ leaked records and the sites that publish your address. About 15 seconds. No account, no card.

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Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed October 12, 2022
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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