Most businesses are familiar with denial-of-service (DoS) attacks, or attacks that cripple an IT network, system, or machine to deny access to intended users. Not many businesses know, however, that Voice over Internet Protocol (VoIP) systems can be a DoS attack target too.

Hackers launch denial-of-service (DoS) attacks to render IT systems and networks inaccessible to intended users. Large corporations’ web servers used to be frequent targets, but nowadays, every business can become a victim. Hackers have also started launching attacks on Voice over Internet Protocol (VoIP) systems.