diff --git a/src/SharpCompress/Archives/Rar/RarArchive.cs b/src/SharpCompress/Archives/Rar/RarArchive.cs
index 7e0b2877..c72fe5fa 100644
--- a/src/SharpCompress/Archives/Rar/RarArchive.cs
+++ b/src/SharpCompress/Archives/Rar/RarArchive.cs
@@ -86,8 +86,8 @@ public class RarArchive : AbstractArchive<RarArchiveEntry, RarVolume>
 
     public override bool IsEncrypted =>
         Entries
-            .Where(x => !x.IsDirectory)
-            .Any(file => file.IsEncrypted);
+            .First(x => !x.IsDirectory)
+            .IsEncrypted;
 
     public virtual int MinVersion => Volumes.First().MinVersion;
     public virtual int MaxVersion => Volumes.First().MaxVersion;
diff --git a/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs b/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
index ec2af951..2c8986b4 100644
--- a/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
+++ b/src/SharpCompress/Archives/SevenZip/SevenZipArchive.cs
@@ -207,8 +207,8 @@ public class SevenZipArchive : AbstractArchive<SevenZipArchiveEntry, SevenZipVol
 
     public override bool IsEncrypted =>
         Entries
-            .Where(x => !x.IsDirectory)
-            .Any(file => file.IsEncrypted);
+            .First(x => !x.IsDirectory)
+            .IsEncrypted;
 
     public override long TotalSize =>
         _database?._packSizes.Aggregate(0L, (total, packSize) => total + packSize) ?? 0;