--- title: Hacked, leaked, and held for ransom: The worst breaches... description: A mid-year roundup of the most damaging cyberattacks and data breaches of 2026. Key incidents include the alleged DOGE upload of the Social Security database... canonical: https://daily.dev/posts/hacked-leaked-and-held-for-ransom-the-worst-breaches-of-2026-so-far-hrhbqwqlk twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Hacked, leaked, and held for ransom: The worst breaches of 2026 so far | daily.dev og:description: A mid-year roundup of the most damaging cyberattacks and data breaches of 2026. Key incidents include the alleged DOGE upload of the Social Security database... og:url: https://daily.dev/posts/hacked-leaked-and-held-for-ransom-the-worst-breaches-of-2026-so-far-hrhbqwqlk og:image: https://api.daily.dev/og/posts/hrhBqWqLK.png og:image:alt: Hacked, leaked, and held for ransom: The worst breaches of 2026 so far 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. # Hacked, leaked, and held for ransom: The worst breaches of 2026 so far **[TechCrunch](https://daily.dev/sources/tc)** · 10 min read · 0 upvotes · 0 comments ## Summary A mid-year roundup of the most damaging cyberattacks and data breaches of 2026. Key incidents include the alleged DOGE upload of the Social Security database to an unsecured server, a wave of Russian-attributed attacks on European energy and water infrastructure, Iranian hackers remotely wiping Stryker employee devices, the Klue supply chain breach affecting ~200 companies including LastPass and HackerOne, ShinyHunters compromising Instructure's Canvas platform affecting 30 million students, a breach of the FBI's surveillance system attributed to Chinese spies, Meta's AI chatbot being abused to hijack tens of thousands of Instagram accounts, Hasbro suffering weeks of downtime, and a surge in exposed passport and driver license data from misconfigured services. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [The worst hacks and breaches of 2026 \(so far\)](https://daily.dev/posts/the-worst-hacks-and-breaches-of-2026-so-far--3dqg6tznt) · TechCrunch · 0 upvotes · 0 comments - [Leaks, data breaches, and ransom notes: The worst hacks of 2026 so far](https://daily.dev/posts/leaks-data-breaches-and-ransom-notes-the-worst-hacks-of-2026-so-far-6lnsk6pc5) · TechCrunch · 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 - [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 - [Security briefing: September 2026](https://daily.dev/posts/security-briefing-september-2026-effyny3go) · Sysdig Blog · 1 upvotes · 0 comments --- Tags: [#cyber](https://daily.dev/tags/cyber), [#ransomware](https://daily.dev/tags/ransomware), [#data-breach](https://daily.dev/tags/data-breach) [View this post on daily.dev](https://daily.dev/posts/hacked-leaked-and-held-for-ransom-the-worst-breaches-of-2026-so-far-hrhbqwqlk) ```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":"Hacked, leaked, and held for ransom: The worst breaches of 2026 so far","url":"https://daily.dev/posts/hacked-leaked-and-held-for-ransom-the-worst-breaches-of-2026-so-far-hrhbqwqlk","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/hacked-leaked-and-held-for-ransom-the-worst-breaches-of-2026-so-far-hrhbqwqlk"},"datePublished":"2026-07-07T16:52:46.803Z","dateModified":"2026-07-07T16:53:09.530Z","description":"A mid-year roundup of the most damaging cyberattacks and data breaches of 2026. 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