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Security controls lagging modern application architectures

April 5, 2026Simply Cyber - Gerald Auger, PhD

Simply Cyber argues firewalls designed for three-tier apps leave blind spots in today’s distributed systems, creating a gap attackers exploit; the operational takeaway is to reassess controls against current app topology and traffic flows.

The Security Gap Nobody Talks About.
Your firewall was built for a three-tier architecture.
Most modern applications don't look anything like that anymore
Simply Cyber - Gerald Auger, PhD
network securityarchitecturecisco

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