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Jack Dorsey

Jack Dorsey, is an American businessman and web developer, co-founder and ex CEO of Twitter
| CryptoPress
 | Last updated: December 28, 2021
| CryptoPress
Last updated: December 28, 2021



Jack Dorsey, is an American businessman and web developer, co-founder and ex-CEO of Twitter with Evan Williams and Cristopher Stone. Born on November 19, 1976, under the zodiac sign of Sagittarius, in St. Louis, Missouri. 

Jack showed a great interest in technology as a child, at the age of 14 he designed and developed software for the logistics area that is used by taxi companies to this day. 

After his teens, Dorsey attended New York University, following in the tradition of computer science entrepreneurs such as Bill Gates, Mark Zukerberg, and Steve Jobs. He never completed his studies, he decided to drop out in 2000 shortly before graduating. 


Dorsey first considered texting and instant messaging, using dispatch software principles, as a way to keep in touch with friends. 

In 2006, he approached Williams and Stone with his idea, together they created a prototype of what would later become the Twitter platform. 

On March 21, 2006, Dorsey posted the first-ever tweet in history. 


In 2009, Dorsey co-founded and became CEO of Square, a mobile payments company that offered devices and software to facilitate credit card transactions. It was launched in 2010 and in 2012 it had more than two million users.

Dorsey also became a member of the Disney Company board of directors, in 2013.

On December 2, 2021, Dorsey changed the name and logo of Square to Block, as a corporate brand and includes CashApp, Spiralbtc, TIDAL and TBD. 

“‘Block’ refers to the neighborhood blocks where we find our vendors, a chain of blocks, block parties filled with music, obstacles to overcome, a section of code, building blocks and, of course, tungsten cubes”. 

Dorsey is known for his interest in cryptocurrencies and the blockchain technology that powers them. 

Previously, he had created a cryptocurrency team on Twitter. In addition, within Square there is a unit called “square crypto”, which is dedicated to the advancement of Bitcoin. 

Square’s rename to Block hints at a possible greater focus within the crypto world. 

Jack Dorsey, became the first to sell a tweet as NFT, auctioned at $ 2.9 million. This is the historic first tweet on the platform. The buyer is Sina Estavi. 

What’s new?

On November 29, 2021, Jack Dorsey published an official statement from his Twitter account explaining his resignation as CEO of Twitter. 

Written from an email, Jack gave three reasons why he decided to resign from his position. 

“The first [reason] is for Parag to become our CEO. The board executed a rigorous process considering all options and appointed Parag unanimously. […] My trust in him as our CEO runs deep. ” 

The second reason is that Bret Taylor agreed to become president of the Twitter board and the third reason was: for their audience, they have a team where ambition and potential abound. 

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