US firms deploy hacking ‘strike back’ technology

A growing number of US companies are adopting “active defence” or “strike-back technology” to retaliate against sophisticated hacking attacks.

Reprisals range from modest steps to distract and delay a hacker to more controversial measures that in some cases, could violate laws US or international laws, security experts say. Some companies have reportedly gone to the extent of hiring contractors to hack an assailant’s systems.