--- title: Top 10 Breaches of the Week | daily.dev description: A weekly roundup of the ten most significant data breaches, covering incidents at KDDI (12.2M email addresses exposed via zero-day), AssuranceAmerica (6.9M... canonical: https://daily.dev/posts/top-10-breaches-of-the-week-yrmqsughb twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Top 10 Breaches of the Week | daily.dev og:description: A weekly roundup of the ten most significant data breaches, covering incidents at KDDI (12.2M email addresses exposed via zero-day), AssuranceAmerica (6.9M... og:url: https://daily.dev/posts/top-10-breaches-of-the-week-yrmqsughb og:image: https://api.daily.dev/og/posts/yRmqsUgHb.png og:image:alt: Top 10 Breaches of the Week og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Top 10 Breaches of the Week **[Security Boulevard](https://daily.dev/sources/securityboulevard)** · 7 min read · 0 upvotes · 0 comments ## Summary A weekly roundup of the ten most significant data breaches, covering incidents at KDDI (12.2M email addresses exposed via zero-day), AssuranceAmerica (6.9M driver's license numbers), Medtronic (3.8M medical records via ShinyHunters), Foxconn North America (8TB stolen via BYOVD ransomware), Accenture (cloud keys and source code claimed stolen), DHS HSIN platform, NAIC via Oracle PeopleSoft zero-day (CVE-2026-35273), Deutsche Bank via third-party supplier, AdaptHealth via social engineering on a contractor account, and law firm Blank Rome (57K clients). Each entry includes what happened, impact, response, and a practical security takeaway for defenders. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Top Data Breaches in 2025 \[Month-wise\]](https://daily.dev/posts/top-data-breaches-in-2025-month-wise--wqazxhk0x) · Security Boulevard · 0 upvotes · 0 comments - [Hacks, thefts and disruption: The worst data breaches of 2025](https://daily.dev/posts/hacks-thefts-and-disruption-the-worst-data-breaches-of-2025-kaqhfgqva) · TechCrunch · 1 upvotes · 0 comments - [Data breach exposes up to 14.2 million email logins at six ISPs](https://daily.dev/posts/data-breach-exposes-up-to-14-2-million-email-logins-at-six-isps-seex7uzig) · BleepingComputer · 0 upvotes · 0 comments - [15th June – Threat Intelligence Report](https://daily.dev/posts/15th-june-threat-intelligence-report-4whgqreq8) · Check Point Research · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#ransomware](https://daily.dev/tags/ransomware), [#data-breach](https://daily.dev/tags/data-breach) [View this post on daily.dev](https://daily.dev/posts/top-10-breaches-of-the-week-yrmqsughb) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Top 10 Breaches of the Week","url":"https://daily.dev/posts/top-10-breaches-of-the-week-yrmqsughb","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/top-10-breaches-of-the-week-yrmqsughb"},"datePublished":"2026-07-10T13:52:39.627Z","dateModified":"2026-07-10T13:53:56.568Z","description":"A weekly roundup of the ten most significant data breaches, covering incidents at KDDI (12.2M email addresses exposed via zero-day), AssuranceAmerica (6.9M...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/57bd04b17aae00608d52628f7a0918d1?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/57bd04b17aae00608d52628f7a0918d1?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Security Boulevard","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Security Boulevard","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/3613c832180040de8d85bb29f74395be","url":"https://daily.dev/sources/securityboulevard"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/top-10-breaches-of-the-week-yrmqsughb","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"security,ransomware,data-breach","timeRequired":"PT7M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Security Boulevard","item":"https://daily.dev/sources/securityboulevard"},{"@type":"ListItem","position":3,"name":"Top 10 Breaches of the Week"}]} ```