Security Breach

What Does Security Breach Mean?

A security breach is any incident that results in unauthorized access of data, applications, services, networks and/or devices by bypassing their underlying security mechanisms. A security breach occurs when an individual or an application illegitimately enters a private, confidential or unauthorized logical IT perimeter.

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A security breach is also known as a security violation.

Techopedia Explains Security Breach

A security breach is one of the earliest stages of a security attack by a malicious intruder, such as a hacker, cracker or nefarious application. Security breaches happen when the security policy, procedures and/or system are violated. Depending on the nature of the incident, a security breach can be anything from low-risk to highly critical.

Within an organization, security breaches are typically monitored, identified, and addressed through the use of software or hardware firewalls. These firewalls detect intrusions, abnormalities, or violations and notify the network or security administrator accordingly.

Moreover, it is essential to consider various security measures, including the implementation of robust antivirus solutions.

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Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.