Jon Barclay’s BlogJon Barclay — Deputy CISO, CISSP, professor, and cybersecurity leader specializing in Zero Trust, IAM, and penetration testing at Utah's largest public university.https://jonbarclay.comThat SharePoint guest visibility setting everyone keeps asking abouthttps://jonbarclay.com/sharepoint-guest-visibilityhttps://jonbarclay.com/sharepoint-guest-visibilityThat SharePoint guest visibility setting everyone keeps asking aboutSun, 08 Mar 2026 00:00:00 GMTOpen sourcing ShareSentinel: a file sharing monitor for higher educationhttps://jonbarclay.com/sharesentinelhttps://jonbarclay.com/sharesentinelOpen sourcing ShareSentinel: a file sharing monitor for higher educationSat, 07 Mar 2026 00:00:00 GMTSharePoint Permissionshttps://jonbarclay.com/sharepoint-permissionshttps://jonbarclay.com/sharepoint-permissionsSharePoint PermissionsSat, 11 Oct 2025 00:00:00 GMTCybersecurity Awareness using AIhttps://jonbarclay.com/ai-videohttps://jonbarclay.com/ai-videoCybersecurity Awareness using AIFri, 12 Apr 2024 00:00:00 GMTNetwork Troubleshootinghttps://jonbarclay.com/network-troubleshootinghttps://jonbarclay.com/network-troubleshootingNetwork TroubleshootingThu, 11 Apr 2024 00:00:00 GMT