Aarti Shahani

There's a kind of attack — one that's evolving — that sneaks into your network, takes your files and holds them for ransom.

Leading companies are keeping tight-lipped about what they're doing to protect customers from similar attacks that have hit Target, Home Depot and other major retailers.

As an organized sector, the tech industry did not applaud President Obama's executive action on immigration; and the future of the joint campaign for a comprehensive bill is unclear.

The agreement is an unexpected act of cooperation between two countries that have been increasingly at odds over intellectual property, cybersecurity, human rights and trade imbalances.

Microsoft is going social. With more than a billion people using Office, the company hopes to gather data and create social tools to help users be more productive in their workplaces and lives.

High-tech firms have been offering bounties to security researchers to find holes and bugs in their software, but these reward programs haven't drawn much interest from major banks.

The Army has long used high-tech tools to make meals for our troops. Now, military scientists are turning away from pots and pans, and looking to 3-D printers to make nutritious food.

About 1 in 5 voters now mails in his ballot. But many ballots are rejected because they arrive late, the voter forgets to sign the form or the signature does not match the one on record.

A group says the Chinese government backed an attack against users of Apple's iCloud service. Experts worry attacks that target weaknesses in the transfer of data on the cloud will become more common.

When Tunisia's young people protested in 2011, they had one key demand: jobs. Now, despite new political leadership, that demand remains unmet — even in tech, the sector that offers the most promise.

Many have tried and failed with this kind of payment option before. But Apple's launch is bigger, with more financial institutions' support, and consumers may be more security-conscious.

A weakness in Microsoft Windows has been exploited by Russian hackers to spy on Western governments, NATO, European energy companies and an academic organization in the U.S., according to a report.

Yahoo has made a number of bad bets in its up-and-down history. But the decision to buy a $1 billion stake in the Chinese e-commerce company Alibaba was hands down a winner.

Alibaba's successful IPO — its stock shot up 38 percent on the first day of trading Friday — ...

Cyberstalking has transformed domestic abuse in the U.S. Tracking tools called spyware make it cheap and easy for someone to monitor a partner secretly, 24 hours a day.

While Apple unveils a futuristic new smart watch, Amazon slashes prices on its smartphone for shoppers. Both companies are searching for the innovation sweet spot in mobile.

At a product event on Tuesday, Apple announced a mobile payment system called Apple Pay. CEO Tim Cook says that Apple Pay will provide a secure way to make transactions using one of Apple's devices.

When hackers steal credit card numbers, the banks and major retailers pay. When they steal personal photos from an Apple account, the user shoulders the cost and can't take back the images.

The Pew Research Center report shows that Americans were more willing to have a conversation about NSA leaker Edward Snowden face-to-face than in discussion groups on Facebook or Twitter.

A researcher says startups Uber and Lyft aren't really ridesharing services. An emerging set of services being tested promises to be more about sharing and less about being like taxis.

President Obama's former campaign manager has gone to work for Uber. The ride-sharing start-up based in San Francisco has hired David Plouffe in hope that the political strategist who helped elect a president can steer the company through a thicket of local regulatory disputes.

This new power couple raises some ...