Segmentation on it-learn.io | IT, Networking & Cybersecurity Bloghttps://blog.it-learn.io/tags/segmentation/Recent content in Segmentation on it-learn.io | IT, Networking & Cybersecurity BlogHugoen-usThu, 30 Apr 2026 00:00:00 +0000Network Segmentation Pitch: From VLANs to Microsegmentation to TrustSechttps://blog.it-learn.io/posts/2026-04-30-network-segmentation-vlans-microsegmentation-trustsec/Thu, 30 Apr 2026 00:00:00 +0000https://blog.it-learn.io/posts/2026-04-30-network-segmentation-vlans-microsegmentation-trustsec/<p>Every SE has heard this objection at least once: &ldquo;We already have VLANs. Our network is segmented.&rdquo;</p> <p>The customer is not wrong. VLANs exist. Ports are assigned. There may even be a spreadsheet somewhere that maps VLANs to building floors. But when you ask whether a compromised workstation on VLAN 10 can reach the database servers on VLAN 50, the room goes quiet. Nobody has tested it. Nobody has looked at the inter-VLAN ACLs — if there are any — in months. The VLAN spreadsheet has not been updated since the last network refresh.</p>