{"id":129331,"date":"2026-04-14T11:42:41","date_gmt":"2026-04-14T03:42:41","guid":{"rendered":"https:\/\/version-2.com\/?p=129331"},"modified":"2026-04-14T11:46:06","modified_gmt":"2026-04-14T03:46:06","slug":"ot-%e5%ae%89%e5%85%a8%e5%8e%9f%e5%89%87%ef%bc%9a%e6%9c%80%e7%b5%82%e7%ab%a0","status":"publish","type":"post","link":"https:\/\/version-2.com\/zh\/2026\/04\/ot-%e5%ae%89%e5%85%a8%e5%8e%9f%e5%89%87%ef%bc%9a%e6%9c%80%e7%b5%82%e7%ab%a0\/","title":{"rendered":"OT \u5b89\u5168\u539f\u5247\uff1a\u6700\u7d42\u7ae0"},"content":{"rendered":"\t\t
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\u00a0<\/p>

Principle 5: Boundary Hardening<\/h2>

Your perimeter is your strongest asset against legacy vulnerabilities.<\/p>

  • Rotate default passwords<\/span> immediately.<\/li>
  • Implement phish-resistant MFA<\/strong>.<\/li>
  • Use context-aware access (Location, OS version, Time).<\/li><\/ul><\/div>

    Principle 6: Impact Limitation<\/h2>

    Assume a breach will happen. Design your network to contain it.<\/p>

    • Segmentation:<\/strong> Isolate functional networks via firewalls.<\/li>
    • Lateral Movement Defense:<\/strong> Use microsegmentation to block host-to-host pivoting.<\/li><\/ul><\/div>

      Principle 7: Logging & Monitoring<\/h2>

      Logs must be actionable, not just stored.<\/p>
      Focus Area<\/th>Action<\/th><\/tr>
      Anomalies<\/td>Alert on traffic baselines.<\/td><\/tr>
      Break-Glass<\/td>High-criticality alerts on emergency account use.<\/td><\/tr>
      Data Flows<\/td>Monitor cross-segment transfers.<\/td><\/tr><\/tbody><\/table><\/div>

      Principle 8: Isolation Planning<\/h2>

      Develop a “kill switch” strategy that maintains critical functions.<\/p>

      • Test Site Isolation<\/strong> before an actual emergency occurs.<\/li>
      • Ensure critical functions operate in “Offline Mode.”<\/li><\/ul><\/div>

        How runZero Helps<\/h3>

        Gain total visibility across your OT environment:<\/p>

        • Discover coverage gaps<\/strong> and bridging devices.<\/li>
        • Identify edge devices<\/strong> with unauthorized connections.<\/li>
        • Audit hardware<\/strong> for default configuration risks.<\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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          About runZero<\/strong>
          runZero, a network discovery and asset inventory solution, was founded in 2018 by HD Moore, the creator of Metasploit. HD envisioned a modern active discovery solution that could find and identify everything on a network\u2013without credentials. As a security researcher and penetration tester, he often employed benign ways to get information leaks and piece them together to build device profiles. Eventually, this work led him to leverage applied research and the discovery techniques developed for security and penetration testing to create runZero.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t\n\t\t

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          About Version 2 Digital<\/h3>

          Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.\n

          \nThrough an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

          \u00a0 Principle 5: Boundary Hardening Your perimeter is you […]<\/p>\n","protected":false},"author":149011790,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1342,976,61],"tags":[1341,977],"class_list":["post-129331","post","type-post","status-publish","format-standard","hentry","category-year2026","category-runzero","category-press-release","tag-1341","tag-runzero"],"acf":[],"yoast_head":"\nOT \u5b89\u5168\u539f\u5247\uff1a\u6700\u7d42\u7ae0 - Version 2<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.runzero.com\/blog\/ot-connectivity-principles-part-3\/\" \/>\n<meta property=\"og:locale\" content=\"zh_HK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"OT \u5b89\u5168\u539f\u5247\uff1a\u6700\u7d42\u7ae0 - 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