Yarno Ritzen

Yarno Ritzen

Yarno Ritzen is a Dutch journalist interested in technology, privacy and human rights in a digital world.

Nuclear weapons

UN's Guterres warns of nuclear 'annihilation' at disarmament meet

With tensions between nuclear powers rising globally, the question is how useful talks about nuclear disarmament are.

UN's Guterres warns of nuclear 'annihilation' at disarmament meet

Hong Kong protests

Laser beams, Twitter war: The tech side of Hong Kong protests

Technology has become a crucial element in the Hong Kong protests, from facial recognition system to online trolling.

Laser beams, Twitter war: The tech side of Hong Kong protests

Twitter

How Arab governments use cyberspace laws to shut down activism

Critical Arab voices are being silenced on Twitter, and laws across the Middle East are created to further this cause.

How Arab governments use cyberspace laws to shut down activism

Twitter

The Khashoggi affair: Twitter manipulation in the Gulf

From the Gulf crisis to the Khashoggi affair, Al Jazeera investigates how bots influence online conversations.

The Khashoggi affair: Twitter manipulation in the Gulf

GCC

The fake Twitter accounts influencing the Gulf crisis

The blockade of Qatar, led by Saudi Arabia, has seen a slew of fake accounts open up and attempt to sway public opinion.

The fake Twitter accounts influencing the Gulf crisis

Middle East

'It exists to demobilise opposition': How Twitter fails Arabs

Social media platforms were essential in the Arab Spring, but governments soon learned how to counter dissent online.

'It exists to demobilise opposition': How Twitter fails Arabs

Social media

How armies of fake accounts 'ruined' Twitter in the Middle East

Twitter in the Middle East changed from a tool for transparency to a platform overrun by bots and propaganda.

How armies of fake accounts 'ruined' Twitter in the Middle East

Space

SpaceX: Another step to breaking a monopoly

Tuesday's launch marks the first time SpaceX's Falcon Heavy has carried a US Air Force mission into space.

SpaceX: Another step to breaking a monopoly

Facebook

Exclusive: Facebook allowed fake news ads ahead of Nigeria vote

Facebook's automated system can be tricked to allow ads to show millions of people fake news, Al Jazeera found.

Exclusive: Facebook allowed fake news ads ahead of Nigeria vote

Twitter

Hacked Twitter accounts used to promote Saudi Arabia, leadership

An account spreading pro-Saudi messages actually belonged to a deceased Weather Channel meteorologist.

Hacked Twitter accounts used to promote Saudi Arabia, leadership

Women's Rights

Contraception use on the rise in 69 poorest countries: report

Since 2012, over 46 million women in the world's lowest income countries got access to contraception, new report says.

Contraception use on the rise in 69 poorest countries: report

Jamal Khashoggi

One month after Khashoggi killing, probe makes little progress

Information on the remains of the 59-year-old Saudi journalist are still unknown as joint Saudi-Turkey probe drags on.

One month after Khashoggi killing, probe makes little progress