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.
Spanish telecommunications company Telefónica confirms its internal ticketing system was breached after stolen data was leaked on a hacking forum. [...]
Chinese hackers, part of the state-backed Silk Typhoon threat group, have reportedly breached the Committee on Foreign Investment in the United States (CFIUS), which reviews foreign investments to determine national security risks. [...]
Popular cannabis brand STIIIZY disclosed a data breach this week after hackers breached its point-of-sale (POS) vendor to steal customer information, including government IDs and purchase information. [...]
BayMark Health Services, North America's largest provider of substance use disorder (SUD) treatment and recovery services, is notifying an undisclosed number of patients that attackers stole their personal and health information in a September 2024 breach. [...]
Medusind, a leading billing provider for healthcare organizations, is notifying hundreds of thousands of individuals of a data breach that exposed their personal and health information more than a year ago, in December 2023. [...]
American football team Green Bay Packers says cybercriminals stole the credit card data of over 8,500 customers after hacking its official Pro Shop online retail store in a September breach. [...]
The United Nations' International Civil Aviation Organization (ICAO) has confirmed that a threat actor has stolen approximately 42,000 records after hacking into its recruitment database. [...]
Washington state has sued T-Mobile over failing to secure the sensitive personal information of over 2 million Washington residents in a 2021 data breach. [...]
On Monday, the United Nations' International Civil Aviation Organization (ICAO) announced it was investigating what it described as a "reported security incident." [...]
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) said today that the Treasury Department breach disclosed last week did not impact other federal agencies. [...]
More U.S. companies have been added to the list of telecommunications firms hacked in a wave of breaches by a Chinese state-backed threat group tracked as Salt Typhoon. [...]