Privacy Invasion

noun a person who secretly listens to the private conversations of others

verb to listen secretly to the private conversations of others

• It is considered impolite to eavesdrop on private conversations.
• I couldn't help but eavesdrop on their conversation at the coffee shop.
• I saw you trying to eavesdrop on us, you nosy parker!
• Sometimes it feels like the walls have ears and are eavesdropping on our every word.

noun the practice of gaining sexual pleasure from watching others when they are naked or engaged in sexual activity

• Voyeurism is considered a serious invasion of privacy and is illegal in many jurisdictions.
• Some people get a thrill from voyeurism, but it's not something I'm into.
• Creeping on people through their windows is just straight-up voyeurism.
• His constant monitoring of his employees' work was like a form of voyeurism, always watching their every move.

noun a photograph or video taken up a woman's skirt without her consent, typically to view her underwear or genital area

• The act of taking upskirt photos is considered a violation of privacy and is punishable by law.
• I heard that someone got caught trying to take an upskirt photo at the mall.
• Creeps who try to upskirt women should be arrested.
• His reputation took a hit when rumors of him engaging in upskirt behavior surfaced.