Which of the following statements holds true for the term encryption? It refers to a con executed using technology, typically targeted at acquiring sensitive information or tricking someone into installing malicious software. It refers to e-mail transmissions and packets that have been altered to seem as if they came from another source. It refers to scrambling data using a code or formula, known as a cipher, such that it is hidden from those who do not have the unlocking key. It refers to a seemingly tempting, but bogus target meant to draw hacking attempts. It refers to highly restrictive programs that permit communication only with approved entities and/or in an approved manner.