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.
North Korean hackers are deploying newly uncovered tools to move data between internet-connected and air-gapped systems, spread via removable drives, and conduct covert surveillance. [...]
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has released new details about RESURGE, a malicious implant used in zero-day attacks exploiting CVE-2025-0282 to breach Ivanti Connect Secure devices. [...]
DIY store chain ManoMano is notifying customers of a data breach personal data, which was caused by hackers compromising a third-party service provider. [...]
French professional football club Olympique de Marseille has confirmed a cyberattack after a threat actor claimed on Monday that it breached the club's systems earlier this month. [...]
Google's Threat Intelligence Group (GTIG), Mandiant, and partners disrupted a global espionage campaign attributed to a suspected Chinese threat actor that used SaaS API calls to hide malicious traffic in attacks targeting telecom and government networks. [...]
Marquis Software Solutions has filed a lawsuit against SonicWall, accusing the cybersecurity company of gross negligence and misrepresentation that allegedly led to a ransomware attack disrupting operations at 74 U.S. banks. [...]
Wynn Resorts has confirmed that a hacker stole employee data from its systems after the company was listed on the ShinyHunters extortion gang's data leak site. [...]
The ShinyHunters extortion group has published personal information in more than 12 million records allegedly stolen from CarGurus, a U.S.-based digital auto platform. [...]
The ShinyHunters extortion gang has claimed responsibility for breaching Dutch telecommunications provider Odido and stealing millions of user records from its compromised systems. [...]
New York-based ad tech company Optimizely has notified an undisclosed number of customers of a data breach after threat actors compromised some of its systems in a voice phishing attack. [...]