<PackageReference Include="System.Security.Permissions" Version="9.0.5" />

SqlClientPermissionAttribute

Associates a security action with a custom security attribute.
using System.Data.Common; using System.Security; using System.Security.Permissions; namespace System.Data.SqlClient { [AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Constructor | AttributeTargets.Method, AllowMultiple = true, Inherited = false)] public sealed class SqlClientPermissionAttribute : DBDataPermissionAttribute { public SqlClientPermissionAttribute(SecurityAction action) : base((SecurityAction)0) { } public override IPermission CreatePermission() { return null; } } }