DSE security knowledge hub

IT
Knowledge

Page 143 of the DSE IT knowledge center, with source-backed guidance and practical next steps.

DSE-authoredOfficial sourcesReviewed guidance
Search the library
Explore this topic

IT knowledge center

Production-minded guidance for endpoints, servers, updates, cloud services, administration, and supportable operations.

Start with the cornerstone guide
DSE post stream

IT

1,513 articles
DSE visual briefNetworks & infrastructure

Practice the restart sequence after facility power returns

Utility power returning does not mean every dependent service is ready. Build and rehearse an authorized restart sequence that validates power quality, facility systems, network, identity, storage, applications, security, and monitoring.

Published Reviewed 3 min readBy DSE Security Editorial Team
Read the playbook
DSE visual briefPhysical security

Treat water intrusion as an IT and physical-security outage scenario

Water can disable power, communications, access control, video, servers, cabling, and safe building entry at once. Map exposure, protect critical equipment, define isolation and life-safety procedures, preserve evidence, and rehearse recovery.

Published Reviewed 4 min readBy DSE Security Editorial Team
Read the checklist
DSE visual briefNetworks & infrastructure

Verify telecom diversity through last-mile paths, power, equipment, and shared facilities

Two provider names do not prove two survivable communications paths. Trace building entrances, conduits, central offices, power, customer equipment, upstream facilities, DNS, routing, support, and failover behavior before calling a design diverse.

Published Reviewed 3 min readBy DSE Security Editorial Team
Read the guide
DSE visual briefDSE engineering

Turn a DSE Update into an owned assessment, change, and verification record

A public update can start an investigation; it cannot prove local applicability or authorize a production change. Capture source and review context, identify affected assets, assess risk, approve and test the change, verify results, and retain evidence.

Published Reviewed 4 min readBy DSE Security Editorial Team
Read the playbook
DSE visual briefCyber defense

CVE-2026-70329 in Outlook: What the 8.8 RCE Means and How to Respond

Microsoft has fixed CVE-2026-70329, an Outlook integer-overflow vulnerability rated CVSS 8.8. Exploitation requires a user to open a malicious Office file. Review the exact affected editions, deploy the August 11 security release, and verify the installed build by servicing channel.

Published Reviewed 5 min readBy Gavin Stewart
Read the briefing