diff --git a/NHSE.Core/Encryption/EncryptedInt32.cs b/NHSE.Core/Encryption/EncryptedInt32.cs
index 8f03dd8..261f343 100644
--- a/NHSE.Core/Encryption/EncryptedInt32.cs
+++ b/NHSE.Core/Encryption/EncryptedInt32.cs
@@ -9,6 +9,7 @@ public sealed class EncryptedInt32
         // Base shift count used in the encryption.
         private const byte SHIFT_BASE = 3;
 
+        public readonly uint OriginalEncrypted;
         public uint Value;
         public ushort Adjust;
         public byte Shift;
@@ -18,6 +19,7 @@ public sealed class EncryptedInt32
 
         public EncryptedInt32(uint encryptedValue, ushort adjust = 0, byte shift = 0, byte checksum = 0)
         {
+            OriginalEncrypted = encryptedValue;
             Adjust = adjust;
             Shift = shift;
             Checksum = checksum;
@@ -64,6 +66,14 @@ private static uint Encrypt(uint value, byte shift, ushort adjust)
             return (uint) ((val >> 32) + val);
         }
 
+        public static EncryptedInt32 ReadVerify(byte[] data, int offset)
+        {
+            var val = Read(data, offset);
+            if (val.Checksum != CalculateChecksum(val.OriginalEncrypted))
+                throw new ArgumentException(nameof(offset));
+            return val;
+        }
+
         public static EncryptedInt32 Read(byte[] data, int offset)
         {
             var enc = BitConverter.ToUInt32(data, offset + 0);
diff --git a/NHSE.Core/Save/Files/Personal.cs b/NHSE.Core/Save/Files/Personal.cs
index 9558205..908cd13 100644
--- a/NHSE.Core/Save/Files/Personal.cs
+++ b/NHSE.Core/Save/Files/Personal.cs
@@ -42,19 +42,19 @@ public string PlayerName
 
         public EncryptedInt32 Wallet
         {
-            get => EncryptedInt32.Read(Data, Offsets.Wallet);
+            get => EncryptedInt32.ReadVerify(Data, Offsets.Wallet);
             set => value.Write(Data, Offsets.Wallet);
         }
 
         public EncryptedInt32 Bank
         {
-            get => EncryptedInt32.Read(Data, Offsets.Bank);
+            get => EncryptedInt32.ReadVerify(Data, Offsets.Bank);
             set => value.Write(Data, Offsets.Bank);
         }
 
         public EncryptedInt32 NookMiles
         {
-            get => EncryptedInt32.Read(Data, Offsets.NookMiles);
+            get => EncryptedInt32.ReadVerify(Data, Offsets.NookMiles);
             set => value.Write(Data, Offsets.NookMiles);
         }