Analyze several typical and prominent VOIP Security Problems

With the development and application of VoIP, VoIP has attracted more attention from hackers, network scammers, and spam email makers. As a result, the security of VoIP has become increasingly prominent. Typical VoIP Security problems include:

· Anti-virus and attack prevention: the security of VoIP gateway, network guard, terminals, and other devices will directly affect the security of the entire VoIP system.

· Anti-theft: although the VoIP Phone method uses the traditional line-up method to steal the phone number, it can also obtain the IP address phone permission by stealing the user's VoIP login password.

· Anti-eavesdropping: currently, most VoIP products do not encrypt voice data based on real-time requirements and are prone to eavesdropping.

· Port scanning: DoS attacks against various components of the VoIP system will consume the operating system resources of these devices. Any potential internal hacker can use some tools to obtain detailed information about each part of VoIP, such as voice servers, voice gateways, and IP phones, such as IP addresses and TCP/UDP ports of service applications.

· Phone bill fraud: Although VoIP phones cannot be called in parallel, vulnerabilities in IP network management or software such as Sniffer are used, attackers can steal the password managed by the VoIP system or the logon password of the VoIP Phone, which also allows illegal users to obtain the corresponding voice functions and permissions.