If a string is passed through a filter of some kind, then a terminal NULL
						may not be valid. Using alternate representation of NULL allows an attacker
						to embed the NULL midstring while postfixing the proper data so that the
						filter is avoided. One example is a filter that looks for a trailing slash
						character. If a string insertion is possible, but the slash must exist, an
						alternate encoding of NULL in midstring may be used.