I received an aborted call (hang up after half a ring) from a non-anonymous number. When I searched for that number online, the only results that came up were f

I received an aborted call (hang up after half a ring) from a non-anonymous number. When I searched for that number online, the only results that came up were forum discussions of wondering whether it was really Chase's fraud-detection line or a scam. For the most part, they concluded it was a scam, in part because several Chase branch managers had not heard of the number. Fortunately, I came to the opposite (and correct) conclusion, seeing as how I had received the call 30 seconds after attempting to use my Chase card for a large international purchase online and was able to quickly get that issue sorted. Still, it seems to current state-of-the-art that the rest of the bank is not aware of the phone numbers used by their fraud departments.