diff --git a/CHANGELIST.md b/CHANGELIST.md
index 7cac1971..94bf3ac9 100644
--- a/CHANGELIST.md
+++ b/CHANGELIST.md
@@ -61,6 +61,7 @@
 - Forgot the other locations
 - Add future XGD output files
 - Add and use CustomOutputFile
+- Fix access permissions of output file classes
 
 ### 3.2.1 (2024-08-05)
 
diff --git a/MPF.Processors/Aaru.cs b/MPF.Processors/Aaru.cs
index 551bf5ad..5fc56eca 100644
--- a/MPF.Processors/Aaru.cs
+++ b/MPF.Processors/Aaru.cs
@@ -186,7 +186,7 @@ namespace MPF.Processors
         }
 
         /// <inheritdoc/>
-        public override List<OutputFile> GetOutputFiles(string baseFilename)
+        internal override List<OutputFile> GetOutputFiles(string baseFilename)
         {
             switch (Type)
             {
diff --git a/MPF.Processors/BaseProcessor.cs b/MPF.Processors/BaseProcessor.cs
index ddbaeb27..52c484f4 100644
--- a/MPF.Processors/BaseProcessor.cs
+++ b/MPF.Processors/BaseProcessor.cs
@@ -57,7 +57,7 @@ namespace MPF.Processors
         /// </summary>
         /// <param name="baseFilename">Base filename to use for checking</param>
         /// <returns>List of all output files, empty otherwise</returns>
-        public abstract List<OutputFile> GetOutputFiles(string baseFilename);
+        internal abstract List<OutputFile> GetOutputFiles(string baseFilename);
 
         #endregion
 
diff --git a/MPF.Processors/CleanRip.cs b/MPF.Processors/CleanRip.cs
index ec25df95..4ae05b23 100644
--- a/MPF.Processors/CleanRip.cs
+++ b/MPF.Processors/CleanRip.cs
@@ -67,7 +67,7 @@ namespace MPF.Processors
         }
 
         /// <inheritdoc/>
-        public override List<OutputFile> GetOutputFiles(string baseFilename)
+        internal override List<OutputFile> GetOutputFiles(string baseFilename)
         {
             switch (Type)
             {
diff --git a/MPF.Processors/CustomOutputFile.cs b/MPF.Processors/CustomOutputFile.cs
index f1734bc2..d1074188 100644
--- a/MPF.Processors/CustomOutputFile.cs
+++ b/MPF.Processors/CustomOutputFile.cs
@@ -3,14 +3,13 @@ using System.IO;
 #if NET452_OR_GREATER || NETCOREAPP
 using System.IO.Compression;
 #endif
-using System.Linq;
 
 namespace MPF.Processors
 {
     /// <summary>
     /// Represents a single output file with custom detection rules
     /// </summary>
-    public class CustomOutputFile : OutputFile
+    internal class CustomOutputFile : OutputFile
     {
         /// <summary>
         /// Optional func for determining if a file exists
diff --git a/MPF.Processors/DiscImageCreator.cs b/MPF.Processors/DiscImageCreator.cs
index e0b7d083..12fd69a5 100644
--- a/MPF.Processors/DiscImageCreator.cs
+++ b/MPF.Processors/DiscImageCreator.cs
@@ -480,7 +480,7 @@ namespace MPF.Processors
         }
 
         /// <inheritdoc/>
-        public override List<OutputFile> GetOutputFiles(string baseFilename)
+        internal override List<OutputFile> GetOutputFiles(string baseFilename)
         {
             switch (Type)
             {
diff --git a/MPF.Processors/OutputFile.cs b/MPF.Processors/OutputFile.cs
index 895169bd..969eaf3f 100644
--- a/MPF.Processors/OutputFile.cs
+++ b/MPF.Processors/OutputFile.cs
@@ -11,7 +11,7 @@ namespace MPF.Processors
     /// Represents attributes about an <see cref="OutputFile"/>
     /// </summary>
     [Flags]
-    public enum OutputFileFlags : ushort
+    internal enum OutputFileFlags : ushort
     {
         /// <summary>
         /// Default state
@@ -47,7 +47,7 @@ namespace MPF.Processors
     /// <summary>
     /// Represents a single output file
     /// </summary>
-    public class OutputFile
+    internal class OutputFile
     {
         /// <summary>
         /// Set of all filename variants
diff --git a/MPF.Processors/PS3CFW.cs b/MPF.Processors/PS3CFW.cs
index d806f039..18ffe080 100644
--- a/MPF.Processors/PS3CFW.cs
+++ b/MPF.Processors/PS3CFW.cs
@@ -76,7 +76,7 @@ namespace MPF.Processors
         }
 
         /// <inheritdoc/>
-        public override List<OutputFile> GetOutputFiles(string baseFilename)
+        internal override List<OutputFile> GetOutputFiles(string baseFilename)
         {
             switch (Type)
             {
diff --git a/MPF.Processors/Redumper.cs b/MPF.Processors/Redumper.cs
index 2d4763e6..c4e93188 100644
--- a/MPF.Processors/Redumper.cs
+++ b/MPF.Processors/Redumper.cs
@@ -361,7 +361,7 @@ namespace MPF.Processors
         }
 
         /// <inheritdoc/>
-        public override List<OutputFile> GetOutputFiles(string baseFilename)
+        internal override List<OutputFile> GetOutputFiles(string baseFilename)
         {
             switch (Type)
             {
diff --git a/MPF.Processors/RegexOutputFile.cs b/MPF.Processors/RegexOutputFile.cs
index 60e518c1..e54d3ce5 100644
--- a/MPF.Processors/RegexOutputFile.cs
+++ b/MPF.Processors/RegexOutputFile.cs
@@ -1,4 +1,3 @@
-using System;
 using System.IO;
 #if NET452_OR_GREATER || NETCOREAPP
 using System.IO.Compression;
@@ -11,7 +10,7 @@ namespace MPF.Processors
     /// <summary>
     /// Represents a single output file with a Regex-matched name
     /// </summary>
-    public class RegexOutputFile : OutputFile
+    internal class RegexOutputFile : OutputFile
     {
         /// <summary>
         /// Create an OutputFile with a single filename
diff --git a/MPF.Processors/UmdImageCreator.cs b/MPF.Processors/UmdImageCreator.cs
index fbb158c7..53c0662f 100644
--- a/MPF.Processors/UmdImageCreator.cs
+++ b/MPF.Processors/UmdImageCreator.cs
@@ -78,7 +78,7 @@ namespace MPF.Processors
         }
 
         /// <inheritdoc/>
-        public override List<OutputFile> GetOutputFiles(string baseFilename)
+        internal override List<OutputFile> GetOutputFiles(string baseFilename)
         {
             switch (Type)
             {
diff --git a/MPF.Processors/XboxBackupCreator.cs b/MPF.Processors/XboxBackupCreator.cs
index 56a91b19..aca77bb5 100644
--- a/MPF.Processors/XboxBackupCreator.cs
+++ b/MPF.Processors/XboxBackupCreator.cs
@@ -150,7 +150,7 @@ namespace MPF.Processors
         }
 
         /// <inheritdoc/>
-        public override List<OutputFile> GetOutputFiles(string baseFilename)
+        internal override List<OutputFile> GetOutputFiles(string baseFilename)
         {
             switch (Type)
             {