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I believe you can get access from eastern European phone companies for as little as a few thousand dollars. SS7 was designed kind of like BGP: if you're in the

I believe you can get access from eastern European phone companies for as little as a few thousand dollars. SS7 was designed kind of like BGP: if you're in the "in crowd" you can do whatever you want. You can start by googling "ss7 attack".

chokeartist 6y ago
Mostly correct about BGP, except we have started adding verification / validation to operations lately (e.g. RPKI).
KaiserPro 6y ago
> googling "ss7 attack". Oh indeed, I'm old enough to have played with raw SS7 back in the day. I'm just surprised that intentional access is allowed. I had assumed that this kind of access died when frame relays were phased out for fibre/"ethernet" Obviously if you peer with a telecoms company then you'll get some level of access, but for obvious reasons I would have thought it would have some level of filtering, if only to stop them fucking with the billing.