Twitter co-founder Jack Dorsey's new app, called Sun Day, ostensibly helps users track UV exposure and vitamin D intake.

Dorsey's initial investment has gotten the new nonprofit "andOtherStuff" up and running, and he worked on some of its initial ...

Jack Dorsey’s Block Inc. joins the coveted S&P 500 on Wednesday, a symbolic milestone that puts the digital finance firm ...

Jack Dorsey's Bitcoin (BTC) fintech firm Block is about to join the S&P 500. Block announced last week that effective July ...

What has Jack Dorsey, the founder of Twitter (now X) been up to lately? Among other things, creating experimental little ...

Bitchat, a new decentralized messaging application created by Jack Dorsey, is now officially available to the public in the ...

Twitter co-founder Jack Dorsey's Block, Inc. has integrated Bitcoin into several of its products, including Square.

Earlier this month, Block CEO and Twitter co-founder Jack Dorsey unveiled a peer-to-peer, Bluetooth-based messaging app he ...

Jack Dorsey's Bitchat is now available on the App Store, but security researchers have questioned the app's privacy claims.

“Jack’s not hot-headed or hot-blooded,” said Nik Yakovenko, who worked at Twitter under Dorsey from 2015 to 2017. “He’s a calm person. A lot of [Silicon Valley bosses] are not calm.

Jack Dorsey is the chief executive officer of Twitter, which he co-founded in 2006. He is also the co-founder and chief executive officer of the mobile payments company Square.

Twitter co-founder and Block Head Jack Dorsey launched a new peer-to-peer messaging app over the weekend called Bitchat that runs entirely over Bluetooth. Bitchat relies on Bluetooth Low Energy mesh ...