Recently, DHS (US Department of Homeland Security) announced they are developing with private partners a solution to mitigate Telephony Denial of Services (TDOS) against emergency numbers and other critical phone numbers.
For the past years TDOS attacks seems to have flourish in the US. They are often used to claim a ransom to the targeted number owner.
If you have already made a Business Impact Analysis on your telephony system, your probably know how much one day of downtime might cost you. You probably have some solutions in place but, do they protect you against a TDOS?
Don’t forget to add TDOS to your list of threats if it is relevant for your business.
Further readings:
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