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cyber security news today

WhatsApp Hijacks, MCP Leaks, AI Recon, React2Shell Exploit and 15 More Stories

WhatsApp Hijacks, MCP Leaks, AI Recon, React2Shell Exploit and 15 More Stories

Dec 18, 2025Ravie LakshmananCybersecurity / Hacking News This week’s ThreatsDay Bulletin tracks how attackers keep reshaping old tools and finding new angles in familiar systems. Small changes in tactics are stacking up fast, and each… 

North Korea-Linked Hackers Steal .02 Billion in 2025, Leading Global Crypto Theft

North Korea-Linked Hackers Steal $2.02 Billion in 2025, Leading Global Crypto Theft

Threat actors with ties to the Democratic People’s Republic of Korea (DPRK or North Korea) have been instrumental in driving a surge in global cryptocurrency theft in 2025, accounting for at least $2.02 billion out… 

CISA Flags Critical ASUS Live Update Flaw After Evidence of Active Exploitation

CISA Flags Critical ASUS Live Update Flaw After Evidence of Active Exploitation

Dec 18, 2025Ravie LakshmananVulnerability / Software Security The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical flaw impacting ASUS Live Update to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of… 

Cisco Warns of Active Attacks Exploiting Unpatched 0-Day in AsyncOS Email Security Appliances

Cisco Warns of Active Attacks Exploiting Unpatched 0-Day in AsyncOS Email Security Appliances

Dec 18, 2025Ravie LakshmananVulnerability / Network Security Cisco has alerted users of a maximum-severity zero-day flaw in Cisco AsyncOS software that has been actively exploited by a China-nexus advanced persistent threat (APT) actor codenamed UAT-9686… 

Kimwolf Botnet Hijacks 1.8 Million Android TVs, Launches Large-Scale DDoS Attacks

Kimwolf Botnet Hijacks 1.8 Million Android TVs, Launches Large-Scale DDoS Attacks

A new distributed denial-of-service (DDoS) botnet known as Kimwolf has enlisted a massive army of no less than 1.8 million infected devices comprising Android-based TVs, set-top boxes, and tablets, and may be associated with another… 

APT28 Targets Ukrainian UKR-net Users in Long-Running Credential Phishing Campaign

APT28 Targets Ukrainian UKR-net Users in Long-Running Credential Phishing Campaign

Dec 17, 2025Ravie LakshmananEmail Security / Threat Intelligence The Russian state-sponsored threat actor known as APT28 has been attributed to what has been described as a “sustained” credential-harvesting campaign targeting users of UKR[.]net, a webmail… 

New ForumTroll Phishing Attacks Target Russian Scholars Using Fake eLibrary Emails

New ForumTroll Phishing Attacks Target Russian Scholars Using Fake eLibrary Emails

Dec 17, 2025Ravie LakshmananVulnerability / Malware The threat actor linked to Operation ForumTroll has been attributed to a fresh set of phishing attacks targeting individuals within Russia, according to Kaspersky. The Russian cybersecurity vendor said…