File: contracts/src/core/TransactionValidator.sol

182:        address guard = SafeHelper._getGuard(_subAccount);
183:        address fallbackHandler = SafeHelper._getFallbackHandler(_subAccount);
184:
185:        // Ensure guard has not been disabled
186:        if (guard != AddressProviderService._getAuthorizedAddress(_SAFE_MODERATOR_HASH)) revert InvalidGuard();
187:
188:        // Ensure fallback handler has not been altered
189:        if (fallbackHandler != AddressProviderService._getAuthorizedAddress(_CONSOLE_FALLBACK_HANDLER_HASH)) {
190:            revert InvalidFallbackHandler();
191:        }
