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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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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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Showing 20 most recent headlines of 531 Filtered view

Also, US Sanction Cybercrime Enablers, Celine Dion Ticket ScamThis week, ransomware victims paying less, cybercrime sanctions, Celine Dion ticket scams, 23andMe to pay $18 million, a 13-year old Daixin infection, Spiral ransomware, Patch Tuesday, CISA ordered rapid SharePoint patching and Spanish police busted a cybercrime ring. Sore Egyptian World Cup losers.

Bank Info Security 4 days, 15 hours ago

Jscrambler npm Breach Exposes Developers to Malware

Malware Harvested Cloud Credentials, Source Code and Deployment TokensAttackers used a compromised npm publishing credential to release five malicious versions of Jscrambler's Code Integrity package, deploying a Rust-based infostealer that harvested developer, cloud and AI tool credentials while evolving its delivery methods to evade detection.

Business Associates Tied to 50% of Breach Victims as AI-Aided Attacks LoomVendor incidents and hacks, especially data thefts and ransomware attacks, continue to plague the healthcare sector, accounting for the majority of major data breaches reported so far this year. The advent of AI tools in the hands of bad actors, will only heighten the threats, experts predict.

Bank Info Security 1 week, 1 day ago

Breach Roundup: Hush, Don't Talk About the Data Breach

Also, 23andMe Breach Settlement, GitHub AI Flaw, Ubiquiti Patches Critical BugsThis week, hidden breaches, researchers exposed a GitHub AI agent flaw, an Ubiquiti critical flaw, a ColdFusion flaw, a growing Chinese ORB, U.K. government FortiBleed exposure, 23andMe victims get $46.75 million, 3.8 million affected by Medtronic breach and Cerner's 2025 victim count went up.

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.

Novo Nordisk Breach Involved 'Copying' of Patient, Healthcare Provider InfoA hack on Danish pharmaceutical manufacturer Novo Nordisk has compromised some patients' clinical trial information, the maker of popular weight loss and diabetes treatment drugs including Wegovy and Ozempic said. The company is working to bring affected IT systems back online.

Also, France Probes Tchap Breach, M&S Cancels Bonuses, June Patch TuesdayThis week, CISA tightened patching rules, hackers provoked AI scanners. An accused Russian intel hacker appeared in court. Microsoft warned of AI-themed attacks. M&S canceled bonuses. France probed a Tchap breach. NHS trusts disclosed stolen data and a Telegram campaign targeted Russian troops.

Bank Info Security 1 month, 1 week ago

Conduent Hack Victim Count Now Tops 62.2 Million

Back-Office Servicer's Breach Estimate Has More Than Doubled Since FebruaryThe victim tally in back-office services firm Conduent Business Services' 2024 hack has more than doubled to over 62.2 million individuals, from an earlier estimate of "25 million plus." The incident is now on track to be at least the third-largest health data breach ever reported to regulators.

Also: Gas Station Monitoring Systems Under Attack, Spanish Teen Doxer ArrestedThis week, more happened than fits here: Microsoft tried to make nice with researchers, gas tank gauges under attack in the United States, fake FIFA websites are everywhere. Russia cried cyberespionage, Spanish police arrested a teenage doxer, a Oracle WebLogic flaw was actively exploited.

Bank Info Security 1 month, 2 weeks ago

23andMe Failed to Stop Months-Long Hack, State Alleges

Calif. Lawsuit: Genetics Testing Firm Missed Red Flags Before Massive 2023 BreachHackers in 2023 went undetected for five months in genetics testing firm 23andMe's IT systems, despite multiple unheeded warning signs, alleges California's attorney general in a lawsuit. Hackers in late April 2023 began accessing 23andMe's systems by using compromised credentials.

Bank Info Security 1 month, 2 weeks ago

Connecticut Medicaid Portal Hack Affects Thousands

Attackers Attempted to Reroute Hospital Medicaid ReimbursementsA hack on a Connecticut Medicaid web portal involving compromised credentials of a healthcare provider has affected the payment account and other information for about 22,500 patients. The data theft is the latest breach involving a healthcare related web portal hack. Why does this keep happening?

Bank Info Security 1 month, 2 weeks ago

Breach Roundup: US Troops Tracked With Cell Phone Data

Also, Kali365 Bypasses MFA, Silent Ransom Group Makes Office CallsThis week, active duty troops tracked, Kali365 bypassed MFA, Australian lawmakers phished on WhatsApp, Silent Ransom escalated IT scams, Lithuania and German hospitals disclosed breaches, pro-Russian infrastructure providers arrested, CISA warned of active LiteSpeed exploitation.

Bank Info Security 1 month, 2 weeks ago

How to Secure AI Agents Before They Breach Your Stack

Rinki Sethi of Upwind Security on Fixing Identity Gaps in Agentic AIAgentic workflows introduce layered attack surfaces where each step can pass policy checks yet still cause a breach. Rinki Sethi of Upwind Security says threat modeling and identity governance must be built into agents from the start.

Bank Info Security 1 month, 3 weeks ago

Oncology Firm Says Vendor Hack Compromised Patient Data

Breach Is Among Several Recent Major Incidents Involving Billing Software ProvidersA publicly traded cancer treatment firm notified investors that a yet-undisclosed number of patients' information was compromised in a 2025 cybersecurity incident involving a third-party billing software vendor. The Oncology Institute provides cancer treatment care to nearly 2 million patients.

Bank Info Security 1 month, 3 weeks ago

Responding to Breaches With AI? Beware Cross-Contamination

Separate Breach Details Can Bleed Into Each Other, Incident Responders FindCybersecurity investigators who use artificial intelligence tools to draft incident response reports, beware: Information tied to one security incident can contaminate a report into a separate incident, if both get drafted using the same AI tool in the same session, researchers warn.

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