Traffic analysis

Traffic analysis involves looking over a great deal of exchanged information to determine a communication pattern. This helps the hacker to gather information about the users of that network.

Even when messages are encrypted, the frequency of message exchange can still be monitored. It can be difficult to pinpoint when advanced applications, like Wireshark, are used.

To prevent your online calls from being monitored in a traffic analysis attack, ensure you encrypt your session initiation protocol (SIP) traffic information.