
ColdRiver's "I Am Not a Robot" ClickFix Attack Campaign
In 2025, cybersecurity researchers uncovered a new and unusual scam from a Russian hacking group known as ColdRiver. The group, also known as Star Blizzard or the Callisto Group, had discovered a way to exploit one of the Internet's most familiar security tools, the "I am not a robot" CAPTCHA, and t








