Stay informed on the latest data breach incidents and security breaches. Protect your information with our up-to-date breach news and analysis.
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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.
The Crypto24 ransomware group has been using custom utilities to evade security solutions on breached networks, exfiltrate data, and encrypt files. [...]
The House of Commons of Canada is currently investigating a data breach after a threat actor reportedly stole employee information in a cyberattack on Friday. [...]
Healthcare led all industries in 2024 breaches—over 275M patient records exposed, mostly via weak or stolen passwords. See how the self-hosted password manager by Passwork helps providers meet HIPAA requirements, protect ePHI, and keep care running. Try it free for 1 month. [...]
Manpower, one of the world's largest staffing companies, is notifying nearly 145,000 individuals that their information was stolen by attackers who breached the company's systems in December 2024. [...]
The North Korean state-sponsored hackers known as Kimsuky has reportedly suffered a data breach after two hackers, who describe themselves as the opposite of Kimsuky's values, stole the group's data and leaked it publicly online. [...]
The Netherlands' National Cyber Security Centre (NCSC) is warning that a critical Citrix NetScaler vulnerability tracked as CVE-2025-6543 was exploited to breach "critical organizations" in the country. [...]
Connex, one of Connecticut's largest credit unions, warned tens of thousands of members that unknown attackers had stolen their personal and financial information after breaching its systems in early June. [...]