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Introduction
On May 18, 2025, the infamous Rhysida ransomware group made headlines again by claiming a new victim: Termolar. The news was shared by ThreatMon, a known threat intelligence platform tracking ransomware operations across the dark web. This incident marks another alarming addition to the growing list of organizations targeted by this increasingly active cybercriminal group.
the Incident
The ThreatMon Threat Intelligence Team identified fresh dark web activity tied to Rhysida, a ransomware gang known for targeting large corporations with sophisticated attacks. At 08:10 UTC+3 on May 18, 2025, Rhysida added Brazilian company Termolar to its victim list. The announcement was shared via ThreatMon’s official monitoring handle on X (formerly Twitter), alerting cybersecurity professionals and the wider community of the ongoing threat.
While detailed technical information about the breach is not yet public, the nature of Rhysida’s past operations suggests that this attack may have involved data encryption, exfiltration, and a subsequent ransom demand in exchange for not leaking the stolen files. Termolar, a company recognized for its line of thermos and thermal solutions, is now likely facing significant operational disruption, data compromise, and reputational damage.
Rhysida has been making waves in 2024 and 2025, using double extortion tactics—encrypting files and threatening to release sensitive information. Their preferred method of operation includes breaching networks through phishing or unpatched vulnerabilities and then deploying their ransomware payload to lock down systems.
What Undercode Say:
This attack highlights the growing sophistication and boldness of ransomware gangs like Rhysida, who no longer just target global giants but also strategically go after manufacturers and regional leaders with high-value data. Termolar might not be a tech giant, but it’s a well-established brand in South America—making it a perfect mid-tier target for ransomware groups seeking less cybersecurity maturity but enough data to monetize.
Let’s break down what this means:
- The Target Profile: Termolar operates in the consumer goods sector, which may not invest as heavily in cybersecurity as financial or health sectors. This creates a lower barrier for attackers.
- Double Extortion Strategy: Rhysida often uses a method where they not only encrypt data but also steal it, threatening to leak it if the ransom isn’t paid. This puts companies under even more pressure to comply.
- Operational Disruption: If manufacturing or logistics systems were affected, Termolar could face production halts, shipping delays, and significant losses in supply chain momentum.
- Data Sensitivity: Client records, supplier agreements, or even internal R\&D documents may be at risk. Exposure of such information could severely impact trust with stakeholders.
5. Legal and Regulatory Repercussions:
In 2025, cybercriminal groups like Rhysida have become more aggressive, organized, and financially motivated. They monitor markets, target entities with insurance, and follow media coverage to enhance the pressure on their victims.
For companies, this is a loud reminder: cyber resilience is no longer optional. Continuous monitoring, employee awareness, vulnerability management, and having a tested incident response plan are now must-haves in every industry—regardless of size or sector.
Fact Checker Results
✅ Confirmed: Rhysida group publicly claimed responsibility for the Termolar attack.
✅ Source Verified: Post originated from ThreatMon’s official monitoring handle.
✅ Timeline Accurate: The incident occurred on May 18, 2025, with timestamps matching UTC+3.
Prediction
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References:
Reported By: x.com
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