Sony Pictures sheds no light on hacking

US unit still trying to fix computers, five days after attack

Uber forced to stop operating in Nevada

Taxi app hit by first statewide ban in its home market

Acting locally, thinking globally: entrepreneur Borys Musielak

Poland’s digital start-ups eye far shores

Young would-be bosses’ dreams go well beyond national boundaries

Poland’s banks turn high tech

The outlook for the sector may be rosy, but underlying weaknesses cause concern

Cute and affordable presents

Desirable presents that have their own take on the latest trends

Fraudsters threaten online advertising

Digital platforms are difficult to monitor and vulnerable to abuse

Alastair Lukies, CEO of Monitise.

Monitise signs up new partners

Mobile money group partnership comes as Visa is ready to sell stake

US tech: cold shoulder in China

But the grass is greener – and market bigger – at home

View: ‘Social’ CEOs align the workforce

Harnessing community knowledge can improve internal communications

Cloud goes business class

Dropbox and Microsoft team up to woo mobile corporate users

Europe’s demands on Google mount

Calls for stronger ‘right to be forgotten’ and ‘platform neutrality’

China charges Microsoft $140m in back tax

US group says payment is ‘bilateral advanced pricing agreement’

The Samsung phone is no longer smart

The South Korean group has never convinced consumers

Big data deal pushes WANdisco shares up

Bank contract marks UK-based cloud computing company’s first foray into financial services sector

Quindell chief gives up repurchase right

Group says Laurence Moorse did not meet ‘margin call’

HP: cash machine

IT group generates a lot of cash, but it needs to do more

Zalando on track for first annual profit

Increased use of mobile phones and improved efficiencies behind bullish outlook

Samsung: sort it out

Restructuring is essential, but so is transparency

HP profits edge lower on lacklustre sales

PC business the bright spot as fourth-quarter revenues slip

Washington weighs in on Google probe

Senate and House express alarm at EU vote on break-up