Who can be typically expected to indulge in a Cyber Crime

Insiders: Disgruntled employees and ex-employees, spouses, lovers.
Hackers: Crack into networks with malicious intent.
Virus Writers: Pose serious threats to networks and systems worldwide.
Foreign Intelligence: Use cyber tools as part of their Services
For espionage activities.
Can pose the biggest threat to the security of another country.
Terrorists: Use to formulate plans, to raise funds.