The insider threat is not really a cybersecurity problem or a data analytics issue; it's a human risk problem that can only be solved by understanding how people think and behave.
The Absent Minded Manager (Negligent Employee)
The HR manager receives a request to email employees' personally identifiable information (PII) to a new accounting firm. The email address turns out to be fraudulent. This employee rarely takes the time to set up passwords and regularly emails himself/herself sensitive information.
Indicators: Sloppiness and inattentiveness, sharing passwords and sensitive information via email.