diff --git a/src/Icons/Controllers/IconsController.cs b/src/Icons/Controllers/IconsController.cs
index 34c1da2133..df44f915fa 100644
--- a/src/Icons/Controllers/IconsController.cs
+++ b/src/Icons/Controllers/IconsController.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using System.Linq;
 using System.Net;
 using System.Net.Http;
@@ -19,15 +18,6 @@ namespace Bit.Icons.Controllers
             AllowAutoRedirect = false,
             AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate
         });
-        static readonly List<byte[]> _validImageData = new List<byte[]>
-        {
-            // png
-            new byte[] { 137, 80, 78, 71 },
-            // ico
-            new byte[] { 00, 00, 01, 00 },
-            // jpeg
-            new byte[] { 255, 216, 255 }
-        };
         private readonly IMemoryCache _memoryCache;
         private readonly IDomainMappingService _domainMappingService;
         private readonly IconsSettings _iconsSettings;
@@ -70,11 +60,6 @@ namespace Bit.Icons.Controllers
                 }
 
                 var image = await response.Content.ReadAsByteArrayAsync();
-                if(!_validImageData.Any(d => d.SequenceEqual(image.Take(d.Length))))
-                {
-                    return new NotFoundResult();
-                }
-
                 icon = new Icon
                 {
                     Image = image,