The world's richest man sold about 900,000 shares of his company Tesla after asking Twitter followers whether he should sell 10% of his stocks. But documents showed the sale was put in motion much before the poll.

The billionaire CEO of the electric car maker has taken advantage of a nearly six-month meteoric rally in the stock price that vaulted the firm's value to over $1 trillion.

Twitter co-founder Jack Dorsey is stepping down as chief executive of the company. He will be replaced by the current chief technical officer, Parag Agrawal, Twitter said. Mr Dorsey, who co-founded Twitter in 2006, has been serving as chief executive of both Twitter and payment firm Square.

This week, Twitter co-founder Jack Dorsey announced he was stepping down as CEO, and named Parag Agrawal, the company's chief technology officer, as his replacement.⁣ ⁣ Agrawal has played a key role in driving the "re-acceleration" of Twitter's growth and helped oversee its fledgling cryptocurrency initiatives and machine learning efforts, a possible nod to why the Indian-American may have been the top choice for the CEO position.⁣ ⁣

Nigeria had shut out more than 200 million people from the social networking site. Nigeria's IT development agency said the US tech company had met key conditions.

Enes Kanter Freedom is a Turkish-born basketball player who is now a US citizen and plays for the Boston Celtics. He is also a human rights activist. In an interview with FRANCE 24, Freedom criticised billionaire entrepreneur Elon Musk for opening a Tesla showroom in China's Xinjiang region, where the minority Uighurs are persecuted. He also accused Nike – the NBA's main sponsor – of "modern slavery" in China. Ahead of the Beijing Olympics, Freedom called on athletes to make their voices heard, saying the diplomatic boycott was "good but not enough".

After seven months, the Federal Government of Nigeria has finally lifted the ban on the microblogging site Twitter and its operations in the country. For all those months, GuardianTV takes a look at the economic losses.

A court in France ruled the US tech giant must show exactly how it combats online attacks. Anti-discrimination groups say the social media company drags its feet on removing discriminatory content.

We take a look at bogus quotes attributed to the Brazilian and Mexican presidents, amongst others, falsely claiming that electronic voting systems are set to rig the upcoming French elections.

Find these stories and much more when you grab a copy of The Guardian on Tuesday.⁣

Tesla CEO Elon Musk has bought a roughly 9-percent stake in Twitter. Media reports say he is now the largest shareholder in the social-media company. A US Securities and Exchange Commission filing shows Musk owns over 73 million Twitter shares representing a 9.2-percent stake.

It's been a big week for the world's richest man, Elon Musk. Not only has he inaugurated Tesla's new "gigafactory" in Texas, but he's also officially become Twitter's biggest shareholder. But did he do it for the memes, or does he intend to truly transform Twitter and the social media landscape as a whole? FRANCE 24's Tech Editor Peter O'Brien gives us his take.