backdoor

Noun backdoor has 3 senses

• backdoor(n = noun.communication) back door - an undocumented way to get access to a computer system or the data it contains;
is a kind of access, access code

• backdoor(n = noun.artifact) back door, back entrance - an entrance at the rear of a building;
is a kind of exterior door, outside door

• backdoor(n = noun.act) back door - a secret or underhand means of access (to a place or a position); "he got his job through the back door"
is a kind of access