Category Nuances for espionage:

• criminal,
• corrupt,
• communist,
• federal,
• malicious,
• serious,
• major,
• dangerous,
• political,
• online,
• illegal,
• corporate,
• illicit,
• related,
• clandestine,
• damaging,
• subtle,
• military,

Simple Categories for espionage:

• event,
• offense,
• activity,
• work,
• mission,
• act,
• behaviour,
• maneuver,
• practice,
• business,
• action,
• attack,
• offence,
• conduct,