diff --git a/config.h b/config.h
index 6a9c8711..32884f22 100644
--- a/config.h
+++ b/config.h
@@ -54,11 +54,9 @@
 # endif
 #endif
 
-// Define this to ensure C/C++ standard compliance and respect for GCC aliasing rules and other alignment fodder. If you
-// experience a break with GCC at -O3, you should try this first. Guard it in case its set on the command line (and it differs).
-#ifndef CRYPTOPP_NO_UNALIGNED_DATA_ACCESS
-# define CRYPTOPP_NO_UNALIGNED_DATA_ACCESS
-#endif
+// Define this to allow unaligned data access. If you experience a break with
+// GCC at -O3, you should immediately suspect unaligned data accesses.
+// #define CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
 
 // ***************** Less Important Settings ***************
 
@@ -580,12 +578,6 @@ NAMESPACE_END
 	#define CRYPTOPP_BOOL_ARM64 0
 #endif
 
-#if !defined(CRYPTOPP_NO_UNALIGNED_DATA_ACCESS) && !defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS)
-#if (CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || defined(__powerpc__) || (__ARM_FEATURE_UNALIGNED >= 1))
-	#define CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
-#endif
-#endif
-
 // ***************** Initialization and Constructor priorities ********************
 
 // CRYPTOPP_INIT_PRIORITY attempts to manage initialization of C++ static objects.