Iran's hardline former president Mahmud Ahmadinejad became the latest leader to join Twitter on Sunday, despite having been instrumental in getting it banned from the country.

In an age of superfast computers and interconnected everything, the only sure way to protect the integrity of election results is to return to paper and pen.

Nintendo's Switch console went on sale Friday in a global launch seen as key to the Japanese videogame giant reversing flagging sales and moving past the failure of its last console, the Wii U.

The $299 unit, which works both at home and on the go, blends the Super Mario maker's history in the console and handheld device business with its fledgling mobile gaming strategy, which got a big brand win after Pokemon Go's success last summer.

Gulf countries must tighten coordination to fight an increasing number of cyber attacks, experts said on Monday, as one official blamed hackers in Iran.

Chinese telecoms giant ZTE unveiled Sunday what it said is the world's first smartphone compatible with the lightening-fast 5G mobile internet service that networks expect to have up and running by 2020.

Chinese electronics company TCL unveiled Saturday its first BlackBerry-licensed smartphone which brings back the device's signature physical keyboard as it seeks to revive the once mighty brand. 

As President Donald Trump warns of a crackdown on U.S. government leaks to media, interest is growing in technology tools that allow sources to share information anonymously.

One such tool called SecureDrop, being used by at least 30 U.S. and global media organizations, offers a way for sources to anonymously communicate via encrypted servers.

Smartphones are revolutionizing the diagnosis and treatment of illnesses, thanks to add-ons and apps that make their ubiquitous small screens into medical devices, researchers say.

"If you look at the camera, the flash, the microphone... they all are getting better and better," said Shwetak Patel, engineering professor at the University of Washington.

Chinese smartphone maker Huawei managed to gain ground on Samsung and Apple in terms of market share last year, following the problems encountered by the two sector giants, the Gartner consultancy group said on Wednesday.

Over the year as a whole, the Chinese maker saw its sales leap by 26.7 percent, while the South Korean and US rivals both saw their sales decline by 4.3 percent, Gartner said in a study.

Prosecutors said Tuesday they would make a second attempt to arrest the de facto head of South Korean giant Samsung over a corruption scandal that led to the impeachment of President Park Geun-Hye.