The attackers attack the publicly available critical infrastructure of the organization, like VoIP telephone systems. They perform a man-in-the-middle attack between the inbound and outbound connection of the telephone. With the help of such attacks, cybercriminals can listen in incoming or outgoing calls. Thus, cybercriminals gain access to internal VoIP networks if network devices are vulnerable to weak passwords or use vulnerabilities.
SecureLayer7 carries out VoIP network penetration testing to identify the VoIP network vulnerabilities after determining the scope of the work and provides a detailed report which includes vulnerabilities in detail along with the recommendation.