[VoiceOps] Hackers Crash Clay Co. Phones ...

Ryan Delgrosso ryandelgrosso at gmail.com
Mon Aug 18 13:52:23 EDT 2014

IP DDOS and TDOS are really two different problems but yes we as ITSP's 
and CLECs living in the IP space are absolutely susceptible to both.

Ive done a fair amount of research into both of these topics and we have 
seen varying cases of both, but usually IP DDOS steals the spotlight 
because the numbers are bigger and the effects are usually more 
widespread whereas a TDOS attack is rarely felt by anyone that doesn't 
live in the affected region or isn't actively trying to call the victim, 
and usually telcos keep these issues pretty close to the chest.

I expect this sort of attack is going to increase in magnitude in the 
coming 24-36 months as attackers figure out how to wield it. Mark 
Collier gave a very interesting talk at one of the CFCA events on this 
topic, though the focus was on the enterprise victim, but the lessons 
are really the same. There just arent really any good tools to mitigate 
this sort of attack today, especially at the carrier level.


On 8/18/2014 6:30 AM, Matt Yaklin wrote:
> It seems like almost every telephone company can be hit like that
> except the ?largest?...
> A denial of service attack by simply calling so many times it
> fills up their main trunks.
> And we saw how the large IP colo providers handle this for customers
> who get dos'd. The amount of bandwidth they have is staggering and
> they still cannot guarantee you will stay up if a ?skilled? attacker
> wants you down. So you keep throwing money at it until you are
> so well established online that you look at your monthly bill and
> want to puke.
> matt
> On Mon, 18 Aug 2014, Frank Bulk wrote:
>> http://www.wibw.com/home/headlines/Hackers-Behind-Phone-Outage-In-Clay-County-271463051.html?ref=051 
>> Painful issue for Big River Telephone!
>> Frank
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