diff --git a/GameFrameX.Foundation.Hash/Md5Helper.cs b/GameFrameX.Foundation.Hash/Md5Helper.cs
index a6e8c36..fb2290a 100644
--- a/GameFrameX.Foundation.Hash/Md5Helper.cs
+++ b/GameFrameX.Foundation.Hash/Md5Helper.cs
@@ -31,6 +31,7 @@
 //  Official Documentation: https://gameframex.doc.alianblank.com/
 // ==========================================================================================
 
+using System.Diagnostics.CodeAnalysis;
 using System.Security.Cryptography;
 using System.Text;
 
@@ -62,6 +63,7 @@ public static class Md5Helper
     /// <param name="isUpper">是否返回大写形式的哈希值，默认为false返回小写 / Whether to return uppercase hash, defaults to false for lowercase</param>
     /// <returns>32个字符的十六进制字符串形式的哈希值 / A 32-character hexadecimal string hash value</returns>
     /// <exception cref="ArgumentNullException">当 <paramref name="input"/> 为 null 时抛出 / Thrown when <paramref name="input"/> is null</exception>
+    [SuppressMessage("Sonar Code Smell", "S4790:Use a stronger hashing algorithm", Justification = "MD5 is intentionally used here for non-cryptographic checksum / fingerprint / cache-key scenarios; for security-sensitive use cases call Sha256Helper instead.")]
     public static string Hash(string input, bool isUpper = false)
     {
         ArgumentNullException.ThrowIfNull(input, nameof(input));
@@ -104,6 +106,7 @@ public static string HashWithSalt(string input, string salt, bool isUpper = fals
     /// <param name="isUpper">是否返回大写形式的哈希值，默认为false返回小写 / Whether to return uppercase hash, defaults to false for lowercase</param>
     /// <returns>32个字符的十六进制字符串形式的哈希值 / A 32-character hexadecimal string hash value</returns>
     /// <exception cref="ArgumentNullException">当 <paramref name="input"/> 或 <paramref name="salt"/> 为 null 时抛出 / Thrown when <paramref name="input"/> or <paramref name="salt"/> is null</exception>
+    [SuppressMessage("Sonar Code Smell", "S4790:Use a stronger hashing algorithm", Justification = "MD5 is intentionally used here for non-cryptographic checksum / fingerprint / cache-key scenarios; for security-sensitive use cases call Sha256Helper instead.")]
     public static string HashWithSalt(string input, byte[] salt, bool isUpper = false)
     {
         ArgumentNullException.ThrowIfNull(input, nameof(input));
@@ -130,6 +133,7 @@ public static string HashWithSalt(string input, byte[] salt, bool isUpper = fals
     /// <param name="isUpper">是否返回大写形式的哈希值，默认为false返回小写 / Whether to return uppercase hash, defaults to false for lowercase</param>
     /// <returns>32个字符的十六进制字符串形式的哈希值 / A 32-character hexadecimal string hash value</returns>
     /// <exception cref="ArgumentNullException">当 <paramref name="input"/> 为 null 时抛出 / Thrown when <paramref name="input"/> is null</exception>
+    [SuppressMessage("Sonar Code Smell", "S4790:Use a stronger hashing algorithm", Justification = "MD5 is intentionally used here for non-cryptographic checksum / fingerprint / cache-key scenarios; for security-sensitive use cases call Sha256Helper instead.")]
     public static string Hash(byte[] input, bool isUpper = false)
     {
         ArgumentNullException.ThrowIfNull(input, nameof(input));
@@ -149,6 +153,7 @@ public static string Hash(byte[] input, bool isUpper = false)
     /// <param name="input">要计算哈希值的流，不能为null / The stream to compute the hash for, cannot be null</param>
     /// <returns>32个字符的十六进制字符串形式的哈希值 / A 32-character hexadecimal string hash value</returns>
     /// <exception cref="ArgumentNullException">当 <paramref name="input"/> 为 null 时抛出 / Thrown when <paramref name="input"/> is null</exception>
+    [SuppressMessage("Sonar Code Smell", "S4790:Use a stronger hashing algorithm", Justification = "MD5 is intentionally used here for non-cryptographic checksum / fingerprint / cache-key scenarios; for security-sensitive use cases call Sha256Helper instead.")]
     public static string Hash(Stream input)
     {
         ArgumentNullException.ThrowIfNull(input, nameof(input));
@@ -163,6 +168,7 @@ public static string Hash(Stream input)
     /// <param name="input">要计算哈希值的流 / The stream to compute the hash for</param>
     /// <param name="cancellationToken">用于取消异步操作的令牌 / Token used to cancel the asynchronous operation</param>
     /// <returns>小写十六进制字符串形式的哈希值 / The lowercase hexadecimal hash value</returns>
+    [SuppressMessage("Sonar Code Smell", "S4790:Use a stronger hashing algorithm", Justification = "MD5 is intentionally used here for non-cryptographic checksum / fingerprint / cache-key scenarios; for security-sensitive use cases call Sha256Helper instead.")]
     public static async Task<string> HashAsync(Stream input, CancellationToken cancellationToken = default)
     {
         ArgumentNullException.ThrowIfNull(input, nameof(input));