Translation of "false name" into Chinese

The attacks in question, however, were carried out by unknown persons under false names.

不过,相关袭击是由使用假名、不知其真实身份的人实施的。

The perpetrators of terrorist act usually use several aliases or false names in conducting their operations.

但恐怖分子在从事恐怖行为时通常用化名或假名。