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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.

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Bank Info Security 4 weeks, 1 day ago

Breach Roundup: ShinyHunters Leaks 26M MSG Records

Also, Arch Linux Attack, Estonia Quarantines Russian Emails, Joomla FlawThis week, ShinyHunters leaked alleged Madison Square Garden data, a U.S. senator pressed CISA on regional staffing cuts, an Arch Linux supply-chain attack, Mackay Sugar began recovery from a ransomware attack, Novo Nordisk faced dueling breach claims - and more compelling cybersecurity news.

CRM Data Theft Tied to OAuth Tokens Stolen From Third-Party Market Intelligence AppSalesforce disabled connections to its customer relationship management environment from third-party app Klue Battlecards as a response to a "security incident." Attackers breached Klue's platform, generated OAuth tokens for Salesforce and stole data, now being held to ransom.

iRhythm: Patient Information and 'Proprietary' Data Breached, Held for RansomCardiac monitoring firm iRhythm Technologies has told the U.S. Securities and Exchange Commission that hackers recently stole proprietary data and patient health information from "certain" third-party-hosted business applications, and demanded a ransom. The company did not disclose whether it paid.

Investigators Found Months of Unchecked Database Scraping ActivitySouth Korea's privacy regulator fined Coupang a record 624.7 billion won after concluding that weak authentication controls, insider access abuse, evidence destruction and unauthorized data collection contributed to the exposure of personal information belonging to 33.7 million people.

Mandiant: 68% of Targets Were Higher Ed Institutions Running PeopleSoftShinyHunters exploited a critical zero-day in Oracle PeopleSoft to breach more than 100 organizations globally, researchers at Mandiant and Google's Threat Intelligence Group said, with universities and colleges accounting for the majority of confirmed targets in the active extortion campaign.

Diagnostics Lab Reported 10.3M Patients Affected by Collection Agency's HackMedical laboratory testing giant Labcorp has agreed to pay $35 million to settle class action litigation stemming from a 2018 hacking incident on now-defunct American Medical Collections Agency. Labcorp reported the vendor breach in 2019 as affecting nearly 10.3 million patients.