Definition - What does Data Breach mean?
A data breach is also known as a data spill or data leak.
Techopedia explains Data Breach
A data breach occurs when an unauthorized hacker or attacker accesses a secure database or repository. Data breaches are typically geared toward logical or digital data and often conducted over the Internet or a network connection.
A data breach may result in data loss, including financial, personal and health information. A hacker also may use stolen data to impersonate himself to gain access to a more secure location. For example, a hacker's data breach of a network administrator's login credentials can result in access of an entire network.