Transportes Montejo S.A.S. Data Breach

Transportes Montejo S.A.S., a logistics and freight transport company operating in Latin America, was listed on the dark web portal of the krybit ransomware group on September 1, 2026. This listing was flagged by SOCRadar’s Dark Web Monitoring. Notably, this incident marks the second claim against Transportes Montejo S.A.S. on the same date, with the Nightspire ransomware group also listing the company as a victim. This dual listing suggests either separate instances of unauthorized access or a shared initial access vector exploited by different threat actors. The nature of Transportes Montejo S.A.S.’s business in freight transport may attract ransomware actors due to the potential disruption of supply chains and critical infrastructure. Krybit has been active, claiming 58 other victims in the preceding 60 days. The group’s targeting patterns indicate a focus on Professional Services, Other, and Technology industries, with a geographic concentration in India, Thailand, and Brazil. Previous Latin American and Transportation sector victims attributed to krybit include TUM Transportistas Unidos Mexicanos División Norte and Country Motos S.A. de C.V. The current victim, Transportes Montejo S.A.S., aligns with krybit’s general targeting of the transportation sector and its presence in Latin America.

A stealer-log query for the domain transportesmontejo[.]com revealed significant findings, with 25 records spanning from March 2024 through July 2026. Of these, 11 records were classified as employee credentials. The exposed data includes a mix of corporate usernames across payroll, DNS, and internal networking services. This profile, coupled with the absence of credential rotation over a 28-month period, suggests a prolonged period of potential vulnerability. The earliest detected record dates back to March 2024, and the most recent to July 2026. The key endpoints identified through the query include Nominaweb (payroll and HR systems), internal IP-addressed services, DNS infrastructure, and third-party payroll SaaS, along with Google account authentication. The consistent presence of credentials across these diverse systems and the extended timeframe of exposure highlight a potential persistent open access that could be exploited by threat actors. The dual listing by krybit and Nightspire on the same date further reinforces the possibility of ongoing access to Transportes Montejo S.A.S.’s systems. This situation warrants immediate attention and comprehensive investigation into the full scope of compromise. Given the 28-month dwell window and the dual group listing, it is crucial for Transportes Montejo S.A.S. to conduct a thorough audit of system access, particularly focusing on payroll systems dating back to March 2024. All identified credentials should be rotated immediately. Furthermore, an investigation into the indicators of compromise associated with both Nightspire and krybit should be undertaken concurrently to address potential threats comprehensively.

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