Ransomware: Deadlock claims Grupo Mercurio (MX) — Business Services

A new ransomware incident has been publicly reported, involving the Deadlock group targeting Grupo Mercurio, a business services firm in Mexico. The breach was published on the ransomware.live data leak site on July 10, 2026, under the BREACH framework. This event confirms that threat actors continue to target non-financial service providers, particularly in Latin America, and that data exfiltration and extortion remain active risks.

Organizations in the business services sector, especially those with operations or clients in Mexico, should consider this a relevant threat indicator. Any firm handling sensitive client data, payroll, or HR services is potentially at risk. The incident also signals that ransomware groups are expanding beyond traditional high-profile targets to include mid-market service providers, which may have weaker cybersecurity controls.

Compliance teams should immediately verify that their incident response plans include procedures for ransomware-related data exfiltration and extortion. Review current backup integrity and offline storage protocols. Ensure that breach notification obligations under GDPR, local Mexican data protection law (LFPDPPP), and any client contracts are updated to reflect this threat. Finally, conduct a targeted risk assessment for third-party service providers that handle sensitive data, as supply chain attacks often follow such public disclosures.