ESET researchers uncover MythicRatatoskr – a previously unknown Go-based backdoor hiding its C&C server inside the Yggdrasil ...

When Google enters a particular market, it often means bad news for the incumbents. So it was with Google Forms, the tech giant’s form and quiz-building tool that launched in 2008. According to one ...

You may be the victim of an email bomb (aka form bomb/list bomb/subscription bomb). A fraudster has used automated tools to ...

People have been buying and selling items on Craigslist for nearly three decades. As a platform for digital classified ads, its utility is still second to none for many people. But its simplicity (and ...

ESET APT Activity Report Q2 2025–Q3 2025 summarizes notable activities of selected advanced persistent threat (APT) groups that were documented by ESET researchers from April through September 2025.

This blogpost covers newly discovered activities attributed to FrostyNeighbor, targeting governmental organizations in Ukraine. FrostyNeighbor has been running continual cyberoperations, changing and ...

Open Enrollment is peak season for Medicare fraud – here’s how to tell real outreach from fakes and keep your details safe Data breach notifications are telling victims less than ever. What the ...

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

If you’ve clicked through on a scam ad or called the number, and then downloaded something, handed over some ...

ESET Research’s ongoing monitoring of FamousSparrow has borne fruit once again. Our previous public report on FamousSparrow revealed that this China-aligned APT group had developed two new versions of ...