jack dorsey

As Bluesky opens to the public, CEO Jay Graber faces her biggest challenge yet

Block acquires music financial services startup Hifi

Block, the Jack Dorsey-founded fintech company previously known as Square, has acquired Hifi, a music-focused fintech startup. The company declined to share deal terms. Hifi founder and CEO Damian Man

@Jack (Dorsey) quits Instagram, putting the first-name handle up for grabs

The @jack handle on Instagram is back up for grabs. Today, Twitter co-founder and former CEO Jack Dorsey, now Block CEO, announced he has deleted his Instagram account — the one with the coveted

Decentralized social networking app Damus to be removed from App Store, will appeal decision

Damus, a decentralized social networking app backed by Twitter co-founder Jack Dorsey, will be removed from the App Store due to Apple’s strict payment rules. Apple had threatened to remove Damu

India threatened to shut down Twitter and raid employees’ homes, Jack Dorsey says

Jack Dorsey, Twitter’s co-founder, says India — despite its status as the world’s largest democracy — regularly issued requests for the social media giant to remove certain pos

Jack Dorsey thinks Elon Musk isn’t doing right by Twitter

Jack Dorsey has been using Bluesky, the app he partially funded that’s built upon a federated and open social networking protocol he advocates, to do some truth-telling about Twitter, Elon Musk

How Jack Dorsey’s Bitcoin Legal Defense Fund is fighting for the future of open source software

A crypto wallet theft lawsuit brought about by a man who claims to be Bitcoin creator Satoshi Nakamoto could jeopardize the future of open source software development. That’s according to the Ja

Jack Dorsey-backed Twitter alternative Bluesky hits the App Store as an invite-only app

Bluesky, the Twitter alternative backed by Twitter co-founder and CEO Jack Dorsey, has hit the App Store and more testers are gaining access. Though the app is still only available as an invite-only b

Developer platforms are all about trust, and Twitter lost it

Let this be my personal notice to Twitter developers: The team is gone; the investment has been undone.

Jack Dorsey warns against attacks on Twitter staff and dedicates $1M a year to Signal

Twitter founder Jack Dorsey issued a warning on the social network’s state and prospects, saying it meets none of the standards he hoped to achieve and that harassment of its staff is shortsight

Jack Dorsey’s Bitcoin project TBD kills its plan to trademark ‘Web5’

A plan which would see a corporate entity trademark the term “Web5” has been put to rest after much backlash. Late Tuesday night, TBD, the Bitcoin-focused division of Jack Dorsey’s p

Jack Dorsey breaks his silence, owns ‘responsibility for why everyone is in this situation’ at Twitter

Jack Dorsey, who stepped down as Twitter CEO less than one year ago, finally addressed the layoffs that impacted approximately 50% of the company he co-founded in 2006. The workforce reduction, led by

Elon Musk taps the Twitter whistleblower for help getting out of the deal

With the Twitter trial date rapidly approaching, Elon Musk’s legal team sent a subpoena to former Twitter head of security Peiter “Mudge” Zatko, who filed a whistleblower complaint a

Jack Dorsey says his biggest regret is that Twitter was a company at all

Jack Dorsey might be out of the picture at Twitter these days, but he’s still waxing philosophical about the company. In a reply to a tweet asking about his biggest regrets (paired with, sigh, a

Twitter whistleblower says platform was unable to guard against insider threats on January 6

Among the many damning allegations in the newly released Twitter whistleblower complaint, is the disquieting revelation that Twitter was unable to seal its production environment to guard against any

Elon Musk subpoenas former Twitter CEO Jack Dorsey

Elon Musk’s legal team has subpoenaed former Twitter CEO Jack Dorsey, marking the latest development in the legal battle over Musk’s attempt to break his $44 billion acquisition agreement

Instagram’s Dual camera feature copies BeReal, but misses the point

We know the drill: Snapchat adds the Stories feature, Instagram nabs it. TikTok gets too popular, Instagram pivots to short-form video. Now, here’s another one for the list. This week, Instagram

Twitter lays off 30% of its talent acquisition team

Twitter laid off 30% of its talent acquisition team today, two months into a companywide hiring freeze. A Twitter spokesperson confirmed these layoffs but declined to share the exact number of employe

Down bad

Welcome back to Chain Reaction. Last week, we talked about layoffs and the Winklevoss rock gods. This week, we’re looking at a new layer of crypto doom and gloom. Get this newsletter in your inb

As crypto selloff accelerates, how much worse can things get?

The crypto markets buckled this week as fears of cascading failures of key blockchain finance players showed just how fragile things are for the asset class, which dipped below a $1 trillion total mar
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