Off the Wire: A Play by Play on Cybersecurity and Technology Issues
OT Security Miniseries: Securing the Browser to Protect IT and OT Networks In this Off the Wire Podcast OT miniseries episode based on the Dragos OT report, the hosts explain how OT environments are often compromised through IT networks and focus on the browser as a major attack target alongside email. They discuss practical ways to harden browser security, including DNS filtering (with examples like blocking newly registered domains and improving visibility), CIS browser hardening benchmarks and policies (updates, extension restrictions, disabling built-in password saving, limiting browsers), and the role of secure web gateways/web proxies with SSL inspection and DLP considerations. They also cover enterprise password managers, passkeys, and new enterprise browser tools that provide granular controls and DLP for web apps (including AI use cases), plus how EDR and SIEM telemetry support detection and response. They close with a recommended rollout order and preview upcoming episodes on third-party vendor management and OT network monitoring. 00:00 Mini Series Setup 00:43 Why Browsers Are Targeted 03:43 DNS Filtering Basics 06:41 Remote Protection Benefits 09:06 CIS Browser Hardening 11:30 Locking Down Extensions 14:11 Secure Web Gateway Proxies 16:56 Subscribe and Share 17:43 Enterprise Password Managers 19:23 Password Manager Benefits 20:22 Hosting and Vendor Risks 21:12 Passkeys and Unique Logins 23:37 KeyPass and Offline Vaults 24:05 Enterprise Browser Overview 25:53 DLP and Download Controls 26:40 BYOD Visibility and AI Policies 30:21 AI Extensions and Control 32:14 EDR and SIEM Telemetry 35:37 Layering Tools Before EDR 36:54 Practical Rollout Roadmap 40:55 OT Tie In and Next Episodes
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