VoIP has entered the mainstream; talking online via voice doesn't bother IT departments much when
compared to other risky activities. Only 1 percent of IT decision makers deemed voice-over-IP clients
such as calls via
Skype and
Yahoo Messenger as the top security
threat posed by consumer technologies. Since launching in 2003 (and eventually acquired by eBay in
2005), Skype, along with its competitors, allows users to make calls over the Internet to land
phones, cell phones, or other Skype users. Studies have
warned of security breaches, but Skype has added
encryption around its service to prevent what it calls
"unauthorized eavesdropping."