X has finally revealed its long-promised chat platform, which replaces the service's basic DM functionality with features more like the messaging capabilities on other mainstream apps. The update adds ...

For 35 years no one has cracked K4, the final code on a CIA sculpture. Now the artist is auctioning the deception key to Kryptos – a mystery hiding in plain sight – and the buyer chooses whether to ...

CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you buy through our links, we may earn a commission. Video doorbells are useful for ...

Color depth and chroma subsampling are probably two of the most misunderstood aspects of digital video. Trying to educate someone about them usually devolves into a simple “more is better” conclusion, ...

MOBILE chat app Viber not only sends video and images out in the open, but also stores the data publicly online, researchers warn. Researchers from the University of New Haven were able to intercept ...

Slate’s archives are full of fascinating stories. We’re republishing this article because it remains a reader favorite. It was originally published April 12, 2017. In 2022, the author of this piece, ...