What are examples of internal security threats?

Lost/stolen devices, accidental misuse, and malicious employees — and internal users cause the most breaches.

• Lost or stolen devices
• Accidental misuse by employees
• Malicious employees

Key insight: Internal users of the network cause the most security breaches!

Go deeper:

• Insider threat (Wikipedia) — covers malicious employees, negligent/accidental misuse, and the leverage insiders gain from direct internal access.
• Network security (Wikipedia) — frames the human element as often the weakest link, the broader internal-threat context.