McDonald's is working with law enforcement authorities after malicious hackers broke into another company's databases and stole information about an undetermined number of the fast food chain's customers.

Tokyo Institute of Technology's newest supercomputer, Tsubame 2.0, proves that high-power computing can go hand-in-hand with energy efficiency. The new computer, which was inaugurated last week, is the second most energy-efficient supercomputer in the world and that's thanks to an administrator who was more concerned with the monthly electricity bill than the cost of the hardware.

Oracle on Thursday stepped up its efforts to rebuild Sun's hardware business, announcing a high-performance clustered database system that could turn up the competitive pressure on rivals IBM and Hewlett-Packard.

Microsoft has started letting developers build and release applications for Windows Phone 7 using Visual Basic, potentially opening the door to more applications on the new smartphone platform.

Problems with its SAP system are forcing San Diego to delay a city budget audit for six months, in just the latest tale of woe for the troubled ERP (enterprise resource planning) project.

Research In Motion has not agreed to turn over corporate data sent to and from BlackBerry devices to the Indian government, contrary to reports that surfaced on Wednesday, RIM said.

A San Ramon, California, man is facing charges he stole valuable technology from his former employer in hopes of building competitive location-aware products.

Intel has been working with several industry experts to improve the safety of football helmets, including an idea to put its tiny Atom microprocessors inside football helmets to measure and feed real-time impact data to medical personnel on the sidelines of a game.

Misys is buying fellow financial services software vendor Sophis for ?435 million (US$595 million), creating a company with products for both buy-side and sell-side purposes, the company announced Friday. The deal is expected to close before the end of February.

Motorola's mobile phone subsidiary has filed a lawsuit against Microsoft alleging the world's largest software maker has infringed 16 of its patents in PC, mobile and server software, as well as Xbox products.

Google on Tuesday said it won preliminary approval to settle a class-action lawsuit related to alleged privacy violations caused by its Buzz service.

Lawyers for Oracle and SAP made their opening arguments Tuesday in the companies' TomorrowNow lawsuit, with each side giving a very different story to the jury about how damages in the case should be calculated.

Silverlight still has a bright and promising future with Microsoft, the company's servers and tools division chief, Bob Muglia, wrote in a blog post on Monday, aiming to quell rumors to the contrary.

Apple will stop bundling Adobe's Flash with Mac OS X, the company confirmed Friday.

The global body in charge of allocating Internet addresses expects to hand out the final blocks of IPv4 (Internet Protocol version 4) addresses to regional registrars early next year, it said Monday.

Advanced Micro Devices on Thursday said it wants to put its chips in tablets, relenting after months of denying any interest in that market.

AOL is exploring the idea of teaming up with a number of investment firms to make a bid on Yahoo, its much-larger Internet rival, the Wall Street Journal reported Wednesday.

The chief executive officers of Microsoft and Adobe met recently to discuss how best to deal with their common foe -- Apple -- and whether a Microsoft buyout of Adobe might be in the cards, The New York Times reported Thursday.

Motorola has filed two patent lawsuits and a patent complaint with the U.S. International Trade Commission (ITC) alleging that a wide range of Apple products infringe its patents.

Evan Williams is handing over Twitter's CEO title to Chief Operating Officer Dick Costolo, as the microblogging company focuses on generating revenue that is consistent with its massive popularity.