
Patch smarter, not harder.
Lieuwe Jan Koning and ON2IT Field CTO Rob Maas break down why “patch everything now” isn’t a strategy, but a risk multiplier. In this session, they teach a practical patching strategy: know your assets, patch edge first, stage updates, and use Zero Trust segmentation to choke off exposure so you only patch what truly matters: fast, safely, and without outages.
Key Topics Covered
· Why “patch everything immediately” fails; availability vs. security
· Staged deployments and rollback safety for crown-jewel services
· Zero Trust segmentation to reduce urgency and shrink attack surface
· Priority signals that matter: asset criticality, exposure, KEV, CVSS
Related ON2IT content & explicitly referenced resources
ON2IT Zero Trust: https://on2it.net/zero-trust/
Threat Talks (site): https://threat-talks.com/
CVSS (FIRST): https://www.first.org/cvss/
CISA guidance – Citrix/NetScaler (Citrix Bleed example): https://www.cisa.gov/guidance-addressing-citrix-netscaler-adc-and-gateway-vulnerability-cve-2023-4966-citrix-bleed
Crowdstrike episode: https://youtu.be/IRvWVg1lSuo?si=f8Sj6WYG0KNxlkJD