Saboteur
Sabotage is a deliberate action aimed at weakening another entity through subversion, obstruction, disruption, or destruction. In a workplace setting, sabotage is the conscious withdrawal of efficiency generally directed at causing some change in workplace conditions. One who engages in sabotage is a saboteur. As a rule, saboteurs try to conceal their identities because of the consequences of their actions. For example, whereas an environmental pressure group might be happy to be identified with an act of sabotage, it would not want the individual identities of the perpetrators known.
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