What about the CryptoNote ring signature tech that's been verified by cryptographers?
I wasn't aware of it being broken, do you have a link?
Im looking more into this. Does XC implement this tech?
This tech actually seems pretty promising, and I see many coins (with lower caps than XC) use it.
No. XC does not use it. My understanding is that CryptoNote is the only protocol that uses ring signatures (Monero, Boolberry, Darknote, Bytecoin). Which is a completely separate codebase from bitcion & it's still fairly rough.
It also creates blockchain bloat (which XC has sworn to avoid).