C#: Secure Password

using System;
using System.Text;
using System.Security.Cryptography;
namespace UserAccountSystem.Class
{
   public static class SecurePassword
    {
       public static String GetMd5Hash(String input)
    {
        MD5 md5Hasher = MD5.Create();
        byte[] data = md5Hasher.ComputeHash(Encoding.Default.GetBytes(input));
         StringBuilder sBuilder = new StringBuilder();
         for (int i = 0; i < data.Length ; i++)
         {
             sBuilder.Append(data[i].ToString("x2"));
         }
        return sBuilder.ToString();
    }
       public static bool verifyMd5Hash(String input, String hash) 
     {
         String hashOfInput = GetMd5Hash(input);
         StringComparer comparer= StringComparer.OrdinalIgnoreCase;
         if (hashOfInput.CompareTo(hash) == 0) {
         return true;
         }
         return false;
     }
    }
}

public String Password()
        { return Class.SecurePassword.GetMd5Hash(this.ConfirmPasswordBox.Value); }

if (Class.SecurePassword.verifyMd5Hash(this.PasswordBox.Value,UserAccount.TableAdapter.GetPassword(this.ID)) == false)
                    {
                        this.PasswordBox.Value = "";
                        this.ConfirmPasswordBox.Value = "";
                        errorProvider1.SetError(this.PasswordBox, "Wrong Password!");
                        this.PasswordBox.Focus();
                        this.PasswordBox.Select();
                        return; 
                    }