Antivirus is built to protect the device, not to judge a file. OPSWAT founder and CEO Benny Czarny explains why file scan detection lands somewhere between 5% and 40% even with AI engines, why 99.9% detection isn't good enough for a nuclear plant, and how Content Disarm and Reconstruction (CDR) protects critical infrastructure by assuming every file is malicious and rebuilding it clean.
We get into: - How Benny bootstrapped OPSWAT and built a common language that let antivirus, VPN, firewall, and encryption products talk to each other - Testing every antivirus on the market with live malware, and what it showed about real-time protection vs file scanning - Why multiscanning with 30 engines still let malware through - How CDR rebuilds JPEG, PDF, and Office files to strip buffer overflow exploits before they land - Data diodes, one-way optical firewalls, and securing file flow into air-gapped networks - Offline patching, and why critical infrastructure teams need their own training (OPSWAT Academy)
Benny's book, Cybersecurity Upside Down, covers the statistics and architecture behind all of this.
Chapters: 00:00 Welcome Benny Czarny 02:22 How Benny got into cybersecurity 04:58 Big company vs small company lessons 08:20 First hires and scaling from generalists to experts 08:59 The problem that started OPSWAT 12:01 Testing every antivirus with live malware 13:42 Why antivirus file scanning fails, even with AI 17:36 Multiscanning file flow into critical infrastructure 19:45 Why 99.9% detection isn't good enough 20:09 Assume every file is infected: CDR explained 23:52 How CDR strips buffer overflow exploits 26:50 Dolly the sheep and distilled water analogies 28:16 From 15 file types to hundreds of formats 29:51 Data diodes and one-way optical firewalls 32:05 What CDR can't rebuild: executables and sandboxing 33:48 Walled gardens and unpatched networks 35:32 Offline patching and OPSWAT Academy 39:12 Where to find Benny and his book
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