Vodafone...?
The telco that allowed the Californian company Bluecoat to covertly monitor their UK network, engaged in replay attacks launched from Bluecoat's offices in California, and all done without knowledge or content from either party to the communications... that one?
See,
Vodastalk; Vodafone and Bluecoat Stalking Subscribers
https://nodpi.org/2011/06/22/vodastalk-vodafone-and-bluecoat-stalking-subscribers/
Biting the hand that feeds IT
