Red Cell Blog

When a high-profile code leak hits the internet, the first reaction is usually fascination. Developers want to inspect it. Researchers want to understand how it works. Security teams want to know whether the exposure creates downstream risk. But threat actors often move faster than all three. That…

Fraud is nothing new. It is a reality that some people will take advantage of the trusting and even minimally naïve. Last year, in a moment of high stress and low sleep, even I, a 25-year Cyber Security veteran, was duped by a phone call from the “FBI” claiming my involvement in identity theft…

Most organizations are still focused on stopping attackers at the perimeter. But that’s not how modern attacks are working anymore. In Episode 364 of the 443 Podcast, three stories stood out not as isolated incidents, but as signals of a broader shift in how attackers operate: A potential US ban on…

In Episode 363 of The 443 Podcast, Corey Nachreiner speaks with Kristen Yang, Cybersecurity Analyst & Investigations Lead, about the threats security teams should be paying closest attention to right now. The conversation reinforces an uncomfortable truth for defenders: many successful attacks still…

The Green Blood Group was both the group name and the encryptor name of this operation. The group, or threat actor, operated for about a month, between January 2026 and February 2026. Although it's likely operations began shortly before that, possibly towards the end of 2025. During that time, at…

WatchGuard telemetry identified some malicious files being downloaded by victims, and almost all of them originated in Venezuela, indicating a possible malicious campaign targeting companies in this country. The malicious files are distributed via phishing emails that have a SVG file with a filename…