监守自盗 (監守自盜) jiàn shǒu zì dào

jiàn shǒu zì dào set phrase to embezzle
Domain: Idiom 成语
Notes: Literally, to steal what one is protecting (CC-CEDICT '監守自盜'; Guoyu '監守自盜'; Mathews 1931 '監守自盜', p. 115)