Threat detection is more than a cat-and-mouse game. The Janus-faced nature of evaluating and disarming known and unknown strategies of the attackers has become a vital element in daily work. Having fended off one attack, the next one follows swiftly in a modified or new and unknown form. But instead of falling prey to melancholy, how great would it be if everyone in the MNO community promptly shared accumulated information and gave all participants the edge to take defensive measures against attacks. Especially since these will probably reach everyone else a few days later anyway. Reducing the attackers’ return on investment is great fun, and for operators it is vital. The GSMA T-ISAC initiative is already helping the industry a great deal, the way into a safe future is long and rocky, still.