Using realloc() to resize buffers that store sensitive
					information can leave the sensitive information exposed to attack, because it is
					not removed from memory.When sensitive data such as a password or an encryption key is not removed
						from memory, it could be exposed to an attacker using a "heap inspection"
						attack that reads the sensitive data using memory dumps or other methods.
						The realloc() function is commonly used to increase the size of a block of
						allocated memory. This operation often requires copying the contents of the
						old memory block into a new and larger block. This operation leaves the
						contents of the original block intact but inaccessible to the program,
						preventing the program from being able to scrub sensitive data from memory.
						If an attacker can later examine the contents of a memory dump, the
						sensitive data could be exposed.