TDoS Attacks Take Aim at Emergency First-Responder Services

Telephony denial-of-service (TDoS) attacks, which affect the availability and readiness of call centers, are hitting critical first-responder facilities, according to the Federal Bureau of Investigation (FBI).

A TDoS attack is designed to prevent incoming and outgoing calls, by flooding a target with junk calls.

“The objective is to keep the distraction calls active for as long as possible to overwhelm the victim’s telephone system, which may delay or block legitimate calls for service,” according to a recent announcement from the FBI.

Worryingly, TDoS attacks have been hitting Public Safety Answering Points (PSAPs), which are call centers responsible for connecting callers to emergency services, such as police, firefighting or ambulance services.

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Source: ThreatPost