The malware that topped ESET’s infostealer detections in Latin America in the first half of 2026 is an example of how cybercrime has professionalized

A critical PHP flaw, leaked Linux kernel reports, a poisoned LiteLLM release, and more, all in seven days. Which threats called for immediate action, and which generated more noise than real danger?

An overview of the activities of selected APT groups investigated and analyzed by ESET Research in Q2 2026 and Q3 2026

Here’s the lowdown on CVE-2026-109618 and CVE-2026-109619, as well as what website owners and IT teams should do to stay safe – all in a little more than two minutes

ESET researchers uncover MythicRatatoskr – a previously unknown Go-based backdoor hiding its C&C server inside the Yggdrasil mesh network – that paved the way for a destructive attack against a Ukrainian grain firm

Expect to see quite a few websites serving error pages today: Nearly 70 percent of websites need to update their core software to fix a pair of vulnerabilities that allow an attacker to seize full control over affected servers. Experts…

You can trust a social media platform and still get scammed by an ad running on it

U.S. federal investigators pursuing the ShinyHunters hacking group that recently stole highly sensitive data from the FBI have identified executives at two different ransomware negotiation firms who maintained unusually close relations with the extortion group, KrebsOnSecurity has learned. Sources close…

If you’re suddenly being overwhelmed with sign-up emails, it could very well be a sign of something more serious

The United Kingdom has issued economic sanctions against Cryptomus, a chameleonic cryptocurrency platform that experts say serves as a major conduit for payments related to ransomware, narcotics, darknet markets, fraud and cybercrime services that are helping Russia circumvent existing financial…

Open Enrollment is peak season for Medicare fraud – here’s how to tell real outreach from fakes and keep your details safe