Damaging TDoS Attacks on the Rise

Attackers are targeting phone lines in order to cripple communications.

We all have heard of the rising threats of distributed denial-of-service (DDoS) attacks and how damaging they can be for financial institutions. What you may not have heard about are the lesser known telephony denial-of-service (TDoS) attacks which have been on the rise for the past few years. Although these attacks have yet to receive the publicity of the DDoS attacks, they can be just as damaging.

TDoS attacks target telephones, both landlines and cellphones, flooding them with upwards of thousands of calls per hour and preventing legitimate calls from getting through. The mitigation for such an attack is similar to DDoS attacks, redirect and scrub the traffic while also blocking the sources of the attack. A multilayer call-blocking ruleset can be implemented to cut off the malicious traffic and allow legitimate traffic to flow inbound.

Original article by Kelly Jackson Higgins.
Read the full story here.

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