tripwire

noun

1. 绊索；绊网
   a wire that is stretched close to the ground as part of a device for catching sb/sth if they touch it

1. （陷阱、爆炸装置等的）绊线，绊网
   A tripwire is a wire stretched just above the ground, which sets off something such as a trap or an explosion if someone touches it.

1. A security precaution on this server was that every day, it ran the security program Tripwire& specifically, the older version, 2.3.0.
   这台重要的服务器的安全措施之一是，它每天都运行Tripwire&具体地说，是较老的2.3.0版本。Tripwire是一个检测重要文件是否被篡改的安全程序。