A brief summary to clarify that Esri is not vulnerable to the Printnightmare and Kayseya Ransomware Cyberattacks
Portal for ArcGIS Security 2021 Security 2021 Update 1 Patch fixes one high priority vulnerability and two medium priority vulnerabilities.
ArcGIS Server Security 2021 Update 1 Patch fixes one high priority vulnerability and multiple medium priority vulnerabilities.
This security patch addresses a security vulnerability found in ArcGIS GeoEvent Server.
ArcGIS Earth 1.12 resolves a high priority security issue.
Shift from Privacy Shield to International Privacy Verification program, HIPAA Geocoding, and expanded Trust Center content.
Moderate risk ArcGIS Server vulnerability security advisory
Security advisory for ArcGIS Server moderate-risk vulnerabilities
ArcGIS Security Advisory for ArcGIS high risk vulnerabilities