
What is a data breach? - IBM
A data breach is any security incident in which unauthorized parties access sensitive or confidential information, including personal data (Social Security numbers, bank account numbers, healthcare …
What Is A Data Breach? Definition, Examples & Prevention
Sep 20, 2023 · A data breach occurs when unauthorized individuals gain access to confidential information. The consequences of a data breach can be severe and far-reaching. Hackers can use …
What Is a Data Breach? | Microsoft Security
A data breach is a data security incident when private information or confidential data is stolen or taken from a system without knowledge or permission from the owner.
Data breach - Wikipedia
A data breach, also known as data leakage, is "the unauthorized exposure, disclosure, or loss of personal information ". [1] Attackers have a variety of motives, from financial gain to political activism, …
Data Breach Explained: Types, Mechanisms, and Their Implications
Nov 9, 2025 · What Is a Data Breach? A data breach (also known as a data spill or data leak) is unauthorized access and retrieval of sensitive information by an individual, group, or software system.
What is a Data Breach? Types, and Prevention Tips - SentinelOne
Jul 22, 2025 · Learn what a data breach is, its types, methods, and impacts—plus how to prevent breaches and protect your organization.
What is a Data Breach & How to Prevent Data Leaks - Kaspersky
To define data breach: a data breach exposes confidential, sensitive, or protected information to an unauthorized person. The files in a data breach are viewed and/or shared without permission. …
What is a data breach? - Cloudflare
What is a data breach? A data breach is the release of confidential, private, or otherwise sensitive information into an unsecured environment. A data breach can occur accidentally, or as the result of …
What Is a Data Breach? Definition, Causes & Prevention
Jan 1, 2026 · A data breach is a security incident where unauthorized parties gain access to confidential or sensitive information. This includes customer records and employee credentials.
Data Breach: Meaning, Causes, Examples & How to Prevent It
Jul 22, 2025 · Learn what a data breach is, common causes, major real-world examples, and steps you can take to keep your personal or business data safe from leaks.