I was originally hesitant to get a 12 Month Xbox Live Gold Membership (Xbox One/360), since I normally don't purchase online, and I didn't have an account with cdkeys (now I do).
But my hesitation was misplaced as I immediately received the code quickly and was able to reactivate my gold membership.
The security steps and multiple verification codes needed to go through with a purchase filled me with confidence that this was a safe purchase to make. Which it was.