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On July 29, 2025, the Cybersecurity & Infrastructure Security Agency (CISA), along with the Federal Bureau of Investigation, Canadian Centre for Cyber Security, Royal Canadian Mounted Police, the Australian Cyber Security Centre’s Australian Signals Directorate, and the Australian Federal Police and National Cyber Security Centre, issued an updated advisory on threat actor Scattered Spider, which…

The Federal Bureau of Investigation (FBI) recently issued a public service announcement “to inform individuals and businesses about proxy services taking advantage of end of life routers susceptible to vulnerabilities.” When technology reaches its end of life, the manufacturer no longer supports patching the technology, which opens it to vulnerabilities. This has been a long-standing…

On March 20, 2025, the American Hospital Association (AHA) and the Health-ISAC issued an alert to the health care sector warning of a social media post that posed a potential threat “related to the active planning of a coordinated, multi-city terrorist attack on hospitals in the coming weeks.” The post targets “mid-tier cities with low-security…

On March 12, 2025, a joint cybersecurity advisory was issued by the Cybersecurity and Infrastructure Security Agency, the Federal Bureau of Investigation, and the Multi-State Information Sharing and Analysis Center to advise companies about the tactics, techniques and procedures (TTPs), and indicators of compromise (IOCs) to protect themselves against Medusa ransomware.

According to the advisory:…

The Cybersecurity & Infrastructure Security Agency, the Federal Bureau of Investigation, and the Multi-State Information Sharing and Analysis Center released an advisory on February 19, 2025, providing information on Ghost ransomware activity.

According to the advisory, “Ghost actors conduct these widespread attacks targeting and compromising organizations with outdated versions of software and firmware on their…

Unfortunately, I’ve had unpleasant dealings with the Phobos ransomware group. My interactions with Phobos have been fodder for a good story when I educate client employees on recent cyber-attacks to prevent them from becoming victims. The story highlights how these ransomware groups, including Phobos, are sophisticated criminal organizations with managerial hierarchy. They use common slang…

According to statements by the Cybersecurity and Infrastructure Security Agency (CISA), the People’s Republic of China-backed (PRC) hacking group Salt Typhoon, which attacked telecommunications providers last month, is still infiltrating the providers and it is “impossible for us to predict a time frame on when we’ll have full eviction.” One reason is that the hackers…

On December 4, 2024, four of the five members of the Five Eyes intelligence-sharing group (the United States, Australia, Canada, and New Zealand) law enforcement and cyber security agencies (Agencies) published a joint guide for network engineers, defenders of communications infrastructure and organizations with on-premises enterprise equipment (the Guide). The Agencies strongly encourage applying the…