Any device which is connected to the internet is susceptible to be hacked by the hackers. Voice over Internet Protocol (VoIP) is a transmission technology of sending voice communications and multimedia sessions over the internet. Therefore, VoIP telephone systems are also susceptible to attacks by the hackers. Hackers can institute denial-of-service attacks, record conversations, harvest customer data etc.
Overview
A firewall is a computer program which is intended to block unauthorized access to the computers or networks. A firewall was developed in response to a number of major internet security breaches, when the first internet virus Morris Worm was detected in the late 1980s. Although Morris Worm was not malicious, it originated multiple vulnerabilities in the computers (machines).
Overview
ZRTP is a key agreement protocol, which performs the Diffie-Hellman key exchange between two end points in a VoIP (Voice over Internet Protocol) telephony call, based on the RTP (Real-time Transport Protocol) media stream.On March 5, 2006, Phil Zimmermann, Alan Johnston and Jon Callas submitted the ZRTP to the Internet Engineering Task Force (IETF).
Overview
VoIP (Voice over Internet Protocol) uses the same paths as the network and Internet traffic; whereas it faces the same threats and challenges that are more commonly linked with the Internet. Viruses, Trojan horses, Worms, Denial of Service attack, call termination, eavesdropping, call hijacking, etc. are all possible threats on the VoIP network. Voice traffic in VoIP can now be hacked, attacked, degraded, re-routed and intercepted just like any data packet on the IP network.
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