Russian intelligence-linked cyber threat actors have intensified their operations against NATO research organizations, Western defense contractors, and NGOs supporting Ukraine, employing sophisticated phishing and credential harvesting techniques. The Calisto intrusion set, attributed to Russia’s FSB intelligence service, has escalated its spear-phishing campaigns throughout 2025, leveraging the ClickFix malicious code technique to target high-value entities across […] The post Russian Calisto Hackers Target NATO Research with ClickFix Malware appeared first on GBHackers Security | #1 Globally Trusted Cyber Security News Platform.
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