On March 5, 2026, Sileno Companies Inc. suffered a ransomware attack in which attackers encrypted 22.9 TB of data within 14 hours and exfiltrated more than 67.07 GB of internal files. The incident, publicly listed by the tengu ransomware group on March 7, 2026, potentially exposes sensitive business records that can include customer, vendor, and employee information from the hospitality and real estate company.
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What Public Reporting Shows
Public reporting indicates that Sileno Companies Inc., a U.S. firm focused on hotel operations, property management, restaurant and bar management, and hospitality project development, was hit by ransomware. Available reporting describes the rapid timeline: encryption of 22.9 TB occurred in just 14 hours on March 5, followed by the extraction of more than 67.07 GB of internal files. The tengu group added the victim to its leak site shortly afterward, though the exact number of individuals whose personal data may be affected remains unknown.
Internal files were the primary target, raising concerns that documents containing names, addresses, financial details, contracts, and employee records could now be in the hands of criminals. No evidence has surfaced that customer payment card data or protected health information was specifically targeted, but the broad nature of “internal files” means ordinary people whose information passed through Sileno’s systems should assume some level of exposure.
Why This Matters for You and Your Family
When a company like Sileno is breached, the data leakage can reach far beyond corporate walls. If you have stayed at one of their hotels, used their property management services, or worked with their restaurants, your name, contact information, or payment details may have been stored in the compromised files. That information can be sold, traded, or used to launch further attacks against you and your family.