I am trying to understand the concept behind the rule "Successful logon from IP and failure from a different IP". So it is triggering multiple alerts & it does match the condition because I see two different ip. Common codes I am seeing "50058, 50126, 50076 & 50173". We do have a vpn in place so one of the ip I do see sometimes coming from vpn. I am trying to find out what will be the best way to check if this is something true-positive or false-positive?