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An alert touches multiple segments of the network, representing the challenge to reduce false positives
Deep Network Observability

How to Reduce False Positives with Shared Context

False positives are rarely caused by too many alerts, but by missing context. Let’s say a spike in outbound traffic shows up in the firewall logs. Around the same time, ...

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Magnifying glass on top of a diagram that looks like both a fingerprint and a network, representing end-to-end network troubleshooting
Network Operations

Why Most Performance Investigations Start in the Wrong Place

A padlock silhouetted against a dark background, surrounded by a spray of white particles, representing password spraying detection.
Security Operations

What Password Spraying Looks Like in Raw Network Telemetry

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Network Operations

Cisco Zone-Based Firewall Reporting

Today, I will be talking about the Cisco Zone-Based Firewall, including their differences and advantages compared to a Cisco

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General

Cisco Zone-Based Firewall Logging Support

We recently upgraded a few of our Cisco IOS routers to version 15.4(2)T and enabled zone-based firewall logging, which

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