Reporting highlighted elevated ransomware activity and evolving access-broker ecosystems. BlackFog’s February ransomware roundup counted 82 publicly disclosed ransomware incidents across 20 countries, with the U.S. most affected (51 incidents) and healthcare the most targeted sector (31%). The report attributed publicly claimed attacks to 24 ransomware groups, led by Shiny Hunters (8) and Qilin (6), while noting 41% of incidents were not yet attributed; it also cited individual victim disclosures/claims involving Nova Biomedical (PII exposure affecting 10,764 people), Hosokawa Micron (files accessed; Everest claimed ~30GB theft), and Iron Mountain (Everest claim of 1.4TB theft, while Iron Mountain stated access was limited to a single marketing folder via a compromised credential).
Separately, Huntress described how investigation of a “routine” RDP brute-force success led to discovery of credential-hunting behavior and geo-distributed infrastructure consistent with a ransomware-as-a-service ecosystem and associated initial access activity, illustrating how exposed remote access can connect to broader ransomware operations. Arctic Wolf warned of heightened cyber risk following the February 2026 U.S./Israel-Iran escalation (Operation Epic Fury), advising increased vigilance—especially for sectors historically targeted by Iranian-linked actors (e.g., energy, defense, transportation, healthcare, government)—and anticipating potential wiper activity, DDoS, targeted intrusions, supply-chain risk, and possible collaboration with ransomware-affiliate activity amid geopolitical retaliation dynamics.

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AhnLab’s ASEC released an April 2026 ransomware report summarizing activity observed via ransomware leak sites and damaged-system counts. The report said attacks continued across industries worldwide, highlighted critical infrastructure sectors such as manufacturing, healthcare, and finance, and noted activity from groups including Qilin, DragonForce, and INC Ransom alongside emerging threats.
ESRC released a first-quarter 2026 ransomware report stating that 73 groups were responsible for 2,565 confirmed incidents globally and that South Korea recorded 17 cases, about double the year-earlier period. The report identified Qilin as the most active group, said healthcare was the most targeted sector, and highlighted incidents affecting Covenant Health and Stryker as examples of ransomware-driven disruption.
AhnLab’s ASEC released a March 2026 ransomware report describing continued attacks across critical sectors including manufacturing, healthcare, and finance, with activity from groups such as Qilin, The Gentlemen, and INC Ransom. The report also said ransomware operators increasingly combined encryption with exposure and blackmail via dedicated leak sites and warned that post-December 2025 victim statistics use a changed aggregation methodology.
Using pivots from the brute-force source IP, TLS certificate analysis, and related domains such as specialsseason[.]com and 1vpns[.]com, Huntress identified a wider geo-distributed infrastructure network. Third-party references linked one observed IP to Hive ransomware and BlackSuite, leading Huntress to assess the activity as connected to a ransomware-as-a-service ecosystem and/or initial access broker operations.
After confirming post-compromise malicious activity, Huntress contained the incident by isolating the affected environment across the network. The response stopped the intrusion before the investigation expanded to the attacker’s broader infrastructure.
Huntress Tactical Response Team responded to what appeared to be routine brute-force activity against an internet-exposed RDP server and confirmed a successful compromise of a single account. The intruder then performed domain enumeration and manually searched for password-related files using Notepad rather than relying mainly on common credential-dumping techniques.
BlackFog reported several disputed cases in February 2026 where threat actors claimed large-scale exfiltration but victims said impact was limited or that they found no evidence of compromise. Examples cited included Iron Mountain, HP/Poly, Epworth HealthCare, Atlas Air, and Safran Group.
BlackFog highlighted that February ransomware incidents affected sectors including healthcare, education, transportation, finance, hospitality, government, and critical infrastructure. Reported impacts included theft of personally identifiable information, protected health information, financial records, and operational disruption at organizations such as BridgePay, Conpet, Sapienza University of Rome, and the University of Mississippi Medical Center.
BlackFog said 24 ransomware groups were linked to publicly claimed attacks during February 2026, led by ShinyHunters with eight incidents and Qilin with six. It also noted that 41% of attacks remained unattributed.
BlackFog reported that February 2026 saw 82 publicly disclosed ransomware and cyber extortion incidents across 20 countries. Healthcare was the most targeted sector, and the United States accounted for 51 of the reported incidents.
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