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Cyber Threat
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Ransomware victim Business Services

mcmtelecom.com

Listed by Blackout on · organisation based in Mexico

mcmtelecom.com

Disclosed
May 29, 2024
Leak-site listing date
Threat group
Blackout
15 victims listed
Country
Mexico
#12 most targeted
Sector
Business Services

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for Blackout. Figures and technique mappings are quoted from the source data, not inferred.

About the Blackout group

Blackout is a ransomware group that first appeared in early 2024, initially claiming attacks against healthcare entities in Canada, France, and Germany before expanding to telecommunications, mining, and manufacturing sectors, operating a double-extortion model with a data leak site. Blackout has listed 12 victims since February 2024.

Incident analysis

mcmtelecom.com was listed by Blackout ransomware, a group with 15 victims recorded in this database. The listing appeared on the group's leak site on May 29, 2024.

mcmtelecom.com is based in Mexico and operates in the Business Services sector. Mexico ranks #12 worldwide for ransomware disclosures, with 291 victims in this database.

Sector context. Business services firms often have access to multiple client environments, making them high-value pivot points for ransomware operators seeking to maximise impact across multiple victim organisations.

Blackout typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was mcmtelecom.com attacked by ransomware?

Yes. mcmtelecom.com was listed as a victim of the Blackout ransomware group on May 29, 2024. The organisation is based in Mexico and operates in the Business Services sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked mcmtelecom.com?

mcmtelecom.com was attacked by Blackout ransomware. Blackout is one of the most active ransomware groups, having claimed 15 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the mcmtelecom.com ransomware attack occur?

The ransomware attack on mcmtelecom.com was disclosed on May 29, 2024. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the mcmtelecom.com ransomware attack?

The specific data stolen from mcmtelecom.com has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Business Services organisation, mcmtelecom.com likely held sensitive business data, client information, and operational records.

How can organisations protect against Blackout attacks?

To defend against Blackout and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.