# What is a data breach? ## What is a data breach? A data breach is any security incident in which unauthorized parties access sensitive or confidential information, including personal data (Social Se…
# What is a data breach? ## What is a data breach? 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 data) and corporate data (customer records, intellectual property, financial information). According to IBM’s *Cost of a Data Breach 2025* report, the global average cost of a data breach is USD 4.44 million. According to the *Cost of a Data Breach* *2025* report, stolen or compromised credentials is one of the top five most common initial attack vectors, accounting for 10% of data breaches and taking up to 186 days to identify. In 2017, hackers breached the credit reporting agency Equifax and accessed the personal data of more than 143 million Americans. Organizations that extensively integrate artificial intelligence (AI) and automation into security operations resolve breaches 80 days faster than those that don’t, according to the *Cost of a Data Breach 2025* report.
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What Is a Data Breach? – Cisco
# What Is a Data Breach? A data breach is a security violation or incident that leads to the theft of sensitive or critical data or its exposure to an unauthorized party. ### What is typically exposed in a data breach incident? In a data breach attem…
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What is a data breach and what do we have to do in case of a data breach? – European Commission
A data breach occurs when the data for which your company/organisation is responsible suffers a security incident resulting in a breach of confidentiality,…
本文整理自网络，发布时间：2026年04月14日
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