Cybersecurity research and insight for the AI era · Moving soon to the ESET Blog
Cybersecurity research and insight for the AI era · <a href='https://www.eset.com/blog/en/' target='_blank'>Moving soon to the ESET Blog</a>
Jean-Ian Boutin • 28 Oct 2026 • 6 min. read
ESET Research
ESET APT Activity Report Q2 2026–Q3 2026
Anton Cherepanov and Peter Strýček • 22 Oct 2026 • 16 min. read
MythicRatatoskr: An Yggdrasil-enabled backdoor deployed in a UAC-0099-Sandworm collaboration
Fernando Tavella • 08 Oct 2026 • 15 min. read
MATCHBOIL: New tricks, same old evil intentions
Business Security
The SMB cybersecurity squeeze: AI agents at work, old attacks in overdrive
GuardBreaker: Derailing AI-assisted malware analysis with a code comment
Lessons from Cybersecurity Black Week
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?
Roman Kováč • 28 Oct 2026
An overview of the activities of selected APT groups investigated and analyzed by ESET Research in Q2 2026 and Q3 2026
Jean-Ian Boutin • 28 Oct 2026
Video
PHP2Shell: What to know about two critical PHP flaws
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
Editor • 26 Oct 2026
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
Anton Cherepanov and Peter Strýček • 22 Oct 2026
Social Media
Is the ad a scam? How to tell before you click
You can trust a social media platform and still get scammed by an ad running on it
Phil Muncaster • 20 Oct 2026
Digital Security
Inbox flooded with sign-up messages? Email bombing explained
If you’re suddenly being overwhelmed with sign-up emails, it could very well be a sign of something more serious
Phil Muncaster • 16 Oct 2026
Scams
Medicare scam calls, texts and ads: What to watch for this Open Enrollment
Open Enrollment is peak season for Medicare fraud – here’s how to tell real outreach from fakes and keep your details safe
Phil Muncaster • 14 Oct 2026
How To
What to do when a data breach notice doesn't say much
Data breach notifications are telling victims less than ever. What the company leaves out can still shape what you do next.
Phil Muncaster • 12 Oct 2026
ESET Research catalogs the changes of UAC-0099’s MATCHBOIL downloader from 2024 to 2026
Fernando Tavella • 08 Oct 2026
Inside a brand deal scam targeting YouTube creators
A plausible-sounding sponsorship offer could mask an attempt to compromise your Google account
Christian Ali Bravo • 07 Oct 2026
The quest for simplicity: Why SMBs want advanced protection without the complexity
The cybersecurity market is often making it tougher for SMBs to keep threats at bay
Phil Muncaster • 06 Oct 2026
This month in security with Tony Anscombe – September 2026 edition
Autonomous AI agents go on a hacking spree, and Microsoft ships what used to be a year's worth of security patches in one go – here's how to keep pace
Editor • 30 Sep 2026
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