Access code and Backdoor

Access code noun - A code (a series of characters or digits) that must be entered in some way (typed or dialed or spoken) to get the use of something (a telephone line or a computer or a local area network etc.).

Backdoor and access code are semantically related. In some cases you can replace term "Backdoor" with "Access code", this terms are similar.

Backdoor noun - An undocumented way to get access to a computer system or the data it contains.

Access code and backdoor are semantically related. Sometimes you can use "Access code" instead a noun "Backdoor".