What technology does Netflix (and other streaming services) use to prevent someone from screen capturing a movie, or even taking a screen shot? I am a Computer Science major, and it's annoying
![Netflix 2.4g For Android Iphone Ios Youtube HDMI Dongle Anycast -compatibie Wireless Receiver Stick Display Receiver 1080p - AliExpress Netflix 2.4g For Android Iphone Ios Youtube HDMI Dongle Anycast -compatibie Wireless Receiver Stick Display Receiver 1080p - AliExpress](https://ae01.alicdn.com/kf/S2c1b1fa65d704b43b43a0ad0a712df95C.jpg_640x640Q90.jpg_.webp)
Netflix 2.4g For Android Iphone Ios Youtube HDMI Dongle Anycast -compatibie Wireless Receiver Stick Display Receiver 1080p - AliExpress
![X88 Pro M9 Plus Cast HDMI Dongle LED TV Screen Airplay,Netflix,Media Streaming Device Media Streaming Device - X88 Pro : Flipkart.com X88 Pro M9 Plus Cast HDMI Dongle LED TV Screen Airplay,Netflix,Media Streaming Device Media Streaming Device - X88 Pro : Flipkart.com](https://rukminim2.flixcart.com/image/850/1000/xif0q/selector-box/h/s/1/m9-plus-cast-hdmi-dongle-led-tv-screen-airplay-netflix-media-original-imagh4kxj7uvrwjm.jpeg?q=20)
X88 Pro M9 Plus Cast HDMI Dongle LED TV Screen Airplay,Netflix,Media Streaming Device Media Streaming Device - X88 Pro : Flipkart.com
![Roku Express 4K+ | Streaming Player HD/4K/HDR with Roku Voice Remote with TV Controls, includes Premium HDMI® Cable Black 3941R2 - Best Buy Roku Express 4K+ | Streaming Player HD/4K/HDR with Roku Voice Remote with TV Controls, includes Premium HDMI® Cable Black 3941R2 - Best Buy](https://pisces.bbystatic.com/image2/BestBuy_US/images/products/6449/6449512_sd.jpg)
Roku Express 4K+ | Streaming Player HD/4K/HDR with Roku Voice Remote with TV Controls, includes Premium HDMI® Cable Black 3941R2 - Best Buy
![Amazon.com: SmartSee Miracast Wireless Display Receiver 1080P HDMI WiFi Media Streamer Adapter Support YouTube Netflix Hulu Plus Airplay DLNA TV Stick for Android/Mac/iOS/Windows (2.4G) Amazon.com: SmartSee Miracast Wireless Display Receiver 1080P HDMI WiFi Media Streamer Adapter Support YouTube Netflix Hulu Plus Airplay DLNA TV Stick for Android/Mac/iOS/Windows (2.4G)](https://m.media-amazon.com/images/I/41Hqh+O3U3L.jpg)