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Seemplicity finds US security leaders work 11 or more extra hours per week

Black Kite reveals 26,000 unnamed corporate victims linked to 136 third-party breaches

Zscaler ThreatLabz assessed with medium to high confidence that an Iranian adversary targeted Iraq’s Ministry of Foreign Affairs in a new cyber-attack

Google Chrome initiates quantum-resistant measures via Merkle Tree Certificates to secure HTTPS

John Hultquist suggests “aggressive” Iranian cyber attackers will target the US and its Gulf allies with plausibly deniable ransomware attacks, hacktivist campaigns and more

Military strikes in the Middle East escalate cyber ops, raising spillover risks globally for firms

Oasis Security reveals how a new ClawJacked vulnerability could allow attackers to silently take over a victim’s OpenClaw agent

Chainalysis reveals a big surge in median ransomware payment size in 2025 despite overall drop in criminal revenue

In early January 2026, KrebsOnSecurity revealed how a security researcher disclosed a vulnerability that was used to assemble Kimwolf, the world's largest and most disruptive botnet. Since then, the person in control of Kimwolf -- who goes by the handle "Dort" -- has coordinated a barrage of distributed denial-of-service (DDoS), doxing and email flooding attacks against the researcher and this author, and more recently caused a SWAT team to be sent to the researcher's home. This post examines what is knowable about Dort based on public information.

The security researchers from Zscaler ThreatLabz have also discovered five new tools deployed by the North Korean hacking group

The UK government says its new Vulnerability Monitoring Service has cut unresolved security flaws by 75% and reduced cyber-attack fix times from nearly two months to just over a week

International law enforcement operation led by Europol targets network of teenagers and young adults involved in ransomware attacks, extortion and other crimes

A new report claims that the cost of insider security incidents has surged 20% in two years, reaching an average of US $19.5 million per organization annually, with no sign that the alarming figure is flattening. Read more in my article on the Fortra blog.

New botnet Aeternum shifted C2 operations to Polygon blockchain, complicating takedown efforts

2025 saw 32M phishing emails, with identity threats surpassing vulnerabilities

Datadog report reveals two-fifths of services are affected by exploitable bugs

The UK’s Information Commissioner's Office is about to ditch single-leader model for CEO and board in a major shake-up

There is a certain poetic justice in a cybersecurity-related story that has emerged from Moscow this week: A man has been accused of trying to extort money... from a notorious Russian ransomware gang. Read more in my article on the Hot for Security blog.

UNC2814 hit 53 victims in 42 countries with novel backdoor in decade long cyber espionage operation

The US and allies are urging Cisco Catalyst SD-WAN customers to hunt for signs of exploitation