Stay informed on the latest data breach incidents and security breaches. Protect your information with our up-to-date breach news and analysis.
Search across headline titles and summaries.
Background for this topic.
Breach means unauthorized access to a computer system or network that exposes or steals sensitive data like personal details, passwords, or proprietary information. Attackers often exploit software flaws, weak passwords, or social engineering to gain entry. Breaches can also result from insiders misusing access or accidental data exposure.
Understanding breaches is crucial because they reveal weaknesses in security controls and can lead to data theft or operational disruption. Effective defenses include promptly patching vulnerabilities, enforcing strong authentication, and segmenting networks to limit attacker movement. Detecting breaches quickly through monitoring and logging helps contain damage and guide targeted remediation efforts to secure affected systems and data.
U.S. educational nonprofit National Student Clearinghouse has disclosed a data breach affecting 890 schools using its services across the United States. [...]
Air Canada, the flag carrier and the largest airline of Canada, disclosed a cyber security incident this week in which hackers "briefly" obtained limited access to its internal systems. The incident resulted in the theft of a limited amount of personal information of some of its employees and "certain records." [...]
The City of Dallas, Texas, said this week that the Royal ransomware attack that forced it to shut down all IT systems in May started with a stolen account. [...]
Ethereum blockchain analytics firm Nansen asks a subset of its users to reset passwords following a recent data breach at its authentication provider. [...]
T-Mobile has denied suffering another data breach following Thursday night reports that a threat actor leaked a large database allegedly containing T-Mobile employees' data. [...]
Security researchers discovered a multi-step information stealing campaign where hackers breach the systems of hotels, booking sites, and travel agencies and then use their access to go after financial data belonging to customers. [...]
Pizza Hut Australia is sending data breach notifications to customers, warning that a cyberattack allowed hackers to access their personal information. [...]
Credit reporting firm TransUnion has denied claims of a security breach after a threat actor known as USDoD leaked data allegedly stolen from the company's network. [...]
Data breaches and their investigations are becoming extremely costly for the enterprise. Learn from Outpost24 below about what your business can do to reduce these costs. [...]
The International Criminal Court (ICC) disclosed a cyberattack on Tuesday after discovering last week that its systems had been breached. [...]