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Telephony Denial of Service

The public voice network has become the target of many attacks, including Telephony Denial of Service (TDoS), robocalls (automated telephone calls), SWATing (anonymously filing police reports to provoke a police raid) and bomb threats. TDoS is a flood of malicious inbound calls that target public-safety response systems such as 911. The Department of Homeland Security, Science and Technology (S&T) Directorate Homeland Security Advanced Research Projects Agency (HSARPA) Cyber Security Division's Distributed Denial of Service Defense (DDoSD) is working to shift the advantage from a DDoS attacker to the network administrator by developing the capability to authenticate callers and detect fraudulent call spoofing.

PDF icon Telephony Denial of Service Fact Sheet174.92 KB
Last Published Date: July 10, 2018
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