There was a bit of FUD on some forums that I was reading today considering the Ring Signature code used by XSPEC. Is the Ring Signature code updated so that it works properly and isn't prone to breaches? Is the dev team working on fixing this problem?
It is only FUD, (and poor quality) you can see in this link that this was answered well, 7 months ago:
https://bitcointalk.org/index.php?topic=1704473.msg17636592#msg17636592