term:

Sabotage

sabotage n

[French, from saboter to clatter with wooden shoes, botch, sabotage, from sabot wooden shoe]
1 : the willful destruction of an employer's property or the hindering of normal operations by other means
2 : the injury, destruction, or knowingly defective production of materials, premises, or utilities used for war or national defense compare criminal syndicalism, sedition

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.