Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
A data breach occurs when unauthorized individuals gain access to sensitive or confidential information stored in a computer system or network without permission.
Related terms
Cybersecurity: Measures taken to protect computer systems from unauthorized access, damage, theft, or disruption.
The process of converting information into code to prevent unauthorized access during transmission or storage.
Personal Identifiable Information (PII): Sensitive information that can be used to identify an individual, such as social security numbers or credit card details.