# Network information disclosure #### SS7 Network Information Disclosure SS7 (Signaling System No. 7) is a set of telephony signaling protocols used to set up and tear down telephone calls, manage mobile network operations, and enable advanced features like SMS and call forwarding. Information disclosure in SS7 networks occurs due to vulnerabilities in the protocol, allowing attackers to intercept calls and messages or track users’ locations. This risk stems from the lack of strong security measures in SS7, as it was designed for a closed, trusted network. To mitigate these issues, network operators must implement security measures like intrusion detection systems and stringent access controls. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://ss7-attacks.telco-sec.com/ss7-vulnerabilities-theory/network-information-disclosure.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.