<PackageReference Include="System.Security.Permissions" Version="10.0.0-rc.1.25451.107" />

System.Security.Policy.Zone

Provides the security zone of a code assembly as evidence for policy evaluation. This class cannot be inherited.
namespace System.Security.Policy { public sealed class Zone : EvidenceBase, IIdentityPermissionFactory { public SecurityZone SecurityZone { get; } public Zone(SecurityZone zone); public object Copy(); public static Zone CreateFromUrl(string url); public IPermission CreateIdentityPermission(Evidence evidence); } }