走后门怎么说？through the back doorback door
后门

back door: an undocumented way to get access to a computer system or the data it contains
back door: an entrance at the rear of a building
back door: a secret or underhand means of access (to a place or a position); "he got his job through the back door" (来源：老牌的英语学习网站 http://www.
2hzz.
com) 【e.
g.
】
He is not intelligent, so he entered Harvard through the back door.

他并不聪明,因此他是以走后门的方式进入哈佛大学。

后门（露洞）-计算机常用词汇

A backdoor in a computer system is a method of bypassing normal authentication or obtaining remote access to a computer, while intended to remain hidden to casual inspection.
The backdoor may take the form of an installed program (e.
g.
, Back Orifice) or could be a modification to a legitimate program.