Security issiues in VOIP Applications

Another is the phenomenon is VoIP Phishing. Security Issues of Voip Applications   With the introduction of VOIP, the need for security is compounded because now we must protect two invaluable assets, our data and our voice. For example, when ordering merchandise over the phone, most people will read their credit card number to the person on the other end. The numbers are transmitted without encryption to the seller. In contrast, the risk of sending unencrypted data across the Internet is more significant. Packets sent from a user’s home computer to an online retailer may pass through 15-20 systems that are not under the control of the user’s ISP or the retailer.  Because digits are transmitted using a standard for transmitting digits out of band as special messages, anyone with access to these systems could install software that scans packets for credit card information. For this reason, online retailers use encryption software to protect a user’s information and credit card number. Hence, we are to transmit voice over the Internet Protocol, and specifically across the Internet, similar security measures must be applied. The current Internet architecture does not provide the same physical wire security as the phone lines. The key to securing VOIP is to use the security mechanisms like those deployed in data networks (firewalls, encryption, etc.).   The vulnerabilities in VOIP encompass not only the flaws inherent within the VOIP application itself, but also in the underlying operating systems, applications, and protocols that VOIP depends on.

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