--- title: Analysis: Root Cause of Most Security Incidents Traced... description: A Barracuda Networks analysis of over 2 trillion IT events from 2025 reveals that 90% of ransomware incidents exploited firewalls through unpatched software or... canonical: https://daily.dev/posts/analysis-root-cause-of-most-security-incidents-traced-to-unpatched-firewalls-epvla8klw twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Analysis: Root Cause of Most Security Incidents Traced to Unpatched Firewalls | daily.dev og:description: A Barracuda Networks analysis of over 2 trillion IT events from 2025 reveals that 90% of ransomware incidents exploited firewalls through unpatched software or... og:url: https://daily.dev/posts/analysis-root-cause-of-most-security-incidents-traced-to-unpatched-firewalls-epvla8klw og:image: https://api.daily.dev/og/posts/epVLA8kLW.png og:image:alt: Analysis: Root Cause of Most Security Incidents Traced to Unpatched Firewalls 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. # Analysis: Root Cause of Most Security Incidents Traced to Unpatched Firewalls **[Security Boulevard](https://daily.dev/sources/securityboulevard)** · 3 min read · 1 upvotes · 0 comments ## Summary A Barracuda Networks analysis of over 2 trillion IT events from 2025 reveals that 90% of ransomware incidents exploited firewalls through unpatched software or vulnerable accounts. The most widely detected vulnerability dates back to 2013. Attackers are developing exploits faster, with 96% of lateral movement incidents ending in ransomware deployment. The fastest observed attack (Akira ransomware) encrypted data within three hours of initial breach. Two-thirds of incidents involved supply chain or third-party suppliers. Security teams are urged to prioritize firewall patching and basic security hygiene, with managed security services and AI-driven automation suggested as potential solutions. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Survey: Most Cybersecurity Incidents Stem From Known Vulnerabilities](https://daily.dev/posts/survey-most-cybersecurity-incidents-stem-from-known-vulnerabilities-okzxkkqjv) · Security Boulevard · 0 upvotes · 0 comments - [Vulnerability exploits now dominate intrusions](https://daily.dev/posts/vulnerability-exploits-now-dominate-intrusions-6prcq9dmw) · The Register · 0 upvotes · 0 comments - [Vulnerabilities have become cyber attackers’ No. 1 door to the enterprise](https://daily.dev/posts/vulnerabilities-have-become-cyber-attackers-no-1-door-to-the-enterprise-ybhmgdbuz) · CSO Online · 0 upvotes · 0 comments - [What 22,000 breaches teach us about incident preparedness](https://daily.dev/posts/what-22-000-breaches-teach-us-about-incident-preparedness-dfizrj54c) · CSO Online · 3 upvotes · 0 comments - [Every Ransomware Attack Has a Backstory](https://daily.dev/posts/every-ransomware-attack-has-a-backstory-bzo7w3b2j) · Huntress Blog · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#ransomware](https://daily.dev/tags/ransomware), [#firewall](https://daily.dev/tags/firewall) [View this post on daily.dev](https://daily.dev/posts/analysis-root-cause-of-most-security-incidents-traced-to-unpatched-firewalls-epvla8klw) ```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":"Analysis: Root Cause of Most Security Incidents Traced to Unpatched Firewalls","url":"https://daily.dev/posts/analysis-root-cause-of-most-security-incidents-traced-to-unpatched-firewalls-epvla8klw","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/analysis-root-cause-of-most-security-incidents-traced-to-unpatched-firewalls-epvla8klw"},"datePublished":"2026-02-26T17:03:33.264Z","dateModified":"2026-02-26T17:04:02.010Z","description":"A Barracuda Networks analysis of over 2 trillion IT events from 2025 reveals that 90% of ransomware incidents exploited firewalls through unpatched software or...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/0b8d8f674cb63bf754679398f3ae486c?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/0b8d8f674cb63bf754679398f3ae486c?_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/analysis-root-cause-of-most-security-incidents-traced-to-unpatched-firewalls-epvla8klw","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"security,ransomware,firewall","timeRequired":"PT3M"} {"@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":"Analysis: Root Cause of Most Security Incidents Traced to Unpatched Firewalls"}]} ```