What is a Blackhole Exploit Kit?

The Blackhole Exploit Kit was a widely used toolkit designed by cybercriminals to exploit security vulnerabilities in software like web browsers, Java, and Flash. Once it found a weakness, it would silently install malware on a victim’s computer—often without them knowing. Attackers used it to spread viruses, ransomware, and spyware. Blackhole was popular around 2012 but was eventually shut down after law enforcement arrested its creators.