Jack Dorsey

After Adani, Hindenburg targets Jack Dorsey's Block; firm's shares slump

Hindenburg's report, which was behind a market rout of more than $100 billion in India's Adani Group earlier this year, alleges payments firm led by Twitter co-founder overstated its user numbers and understated its customer acquisition costs.

Twitter poll: Users want Elon Musk to quit as CEO

Billionaire businessman has promised to abide by the results of his online poll asking whether he should step down as head of the social media platform.

Twitter Files 4.0: Executives changed official policy for Trump ban

The newly released installment of the files show how former CEO Jack Dorsey was out of the country during a series of decisions that would ultimately lead to the permanent suspension of Trump’s Twitter account.

Ex-security chief: Twitter concealed major flaws, underestimated bots

Peiter Zatko also warns of obsolete servers, software vulnerable to computer attacks and executives seeking to hide the number of hacking attempts.

Jack Dorsey drops CEO title adopts 'Block Head'

Block Inc says its co-founder Jack Dorsey is changing his role from CEO, president and chairperson to “Block Head and Chairperson,” effective immediately.

Marketplace suspends most NFT sales, citing 'rampant' plagiarism

The NFT selling platform highlighted three main problems: people selling unauthorised copies of other NFTs, people making NFTs of content which does not belong to them, and people selling sets of NFTs which resemble a security.

Unease as Twitter bans photo sharing without consent

Social-media giant says it will block users from sharing private images of other people without their consent, but some users say Twitter needs to clarify exactly how the tightened policy would work.

Twitter co-founder Jack Dorsey steps down as CEO

Twitter shares rose five percent to $49.47 in morning trading after the announcement.

Bitcoin tops $50,000 for first time in three months

Last week, Tesla Inc Chief Executive Officer Elon Musk said that the electric-car maker will most likely restart accepting bitcoin as payments once it conducts due diligence on the amount of renewable energy used to mine the currency.

Twitter CEO Dorsey's first tweet sells for $2.9 million as NFT

Dorsey's tweet highlights a surge of interest around NFTs, or non-fungible tokens, that use the blockchain technology behind cryptocurrencies to turn anything from art to sports trading cards into virtual collector's items that can't be duplicated.

Twitter's Dorsey auctions first ever tweet as digital memorabilia

Jack Dorsey's post from March 2006 received offers that went as high as $88,888.88 within minutes of the Twitter co-founder posting it for sale on a website that sells tweets as non-fungible tokens (NFTs).

Bitcoin surpasses $50,000 for first time

Bitcoin, once the preserve of internet geeks and hobbyists, has since exploded in popularity and has now rocketed by almost 75 percent in value so far this year.