SAN FRANCISCO (Reuters) – Apple Inc’s new iPhone goes on sale on Friday with a bigger screen and 4G wireless technology as the company seeks to safeguard its edge over rivals like Samsung Electronics Co Ltd and Google Inc.

SAN FRANCISCO (Reuters) – Facebook Inc CEO Mark Zuckerberg soothed investors in his first major public appearance since the No. 1 social network’s rocky May IPO breathing life into its struggling shares after hinting at new growth areas from mobile to search.

The boss of social network Facebook has spoken for the first time of the drop in his company’s market value.

LONDON (Reuters) – Scientists in the United States have made an invisible version of square modern barcodes using nanoparticles and fluorescent ink to help in the fight against counterfeiting.

SAN FRANCISCO/BEIJING (Reuters) – The settlement of China’s anti-trust probe into Qualcomm Inc is likely to intensify global scrutiny of the firm’s highly profitable patent licensing business and may even call into question its worldwide contracts with smartphone makers such as Apple and Samsung.

Did your Twitter app suddenly give you the boot or otherwise behave strangely? It’s not just you. The social network has confirmed a sign-in problem that’s kicking out hordes of users (so far mostly on Android) and preventing them from logging back …

It’s tempting to imagine that few online safeguards will stop NSA surveillance in its tracks but that’s not true. A new leak from Edward Snowden’s files reveals that there’s a surprising number of ways to thwart these snoops at least as of 2012. Wh…

With Android OS being the most popular target for mobile malware writers Verizon introduces a Mobile Security app to help users protect personal data stored on their smartphones. [Read more]