Open RAN is nice, AI-RAN could be a breadwinner, and a private networks business would be a bonus, but what keeps telco executives up at night? None of the former. According to credit agency Moody’s Ratings and its latest cyber security heat map, the telco sector is now in the ‘very high’ cyber security risk category. And the blame for this lies at the feet of telco leaders. The report accuses the telco sector of doing a bad job of protecting itself, at a time when protection is most needed. This issue is painfully relevant for the US operators who have recently been subject to several high-profile attacks from Chinese hacker groups Salt Typhoon and Volt Typhoon. In the case…