U.S. semiconductor maker Nvidia Corp. says up to 400,000 users of its forums have had their encrypted passwords compromised in attacks dating back to early July.

It's the latest in a stream of data thefts which has hit major Internet companies over the past few weeks. Search provider Yahoo, networking sites LinkedIn and FormSpring, and dating site eHarmony have all recently reported breaches which collectively compromised the online credentials of millions of users.

It is another defining moment for Wikipedia.

The public knowledge website is more than a decade old and remains among the top 10 Internet sites in the world, but some say it is becoming old and dowdy. Others want to keep it that way.

The Czech telecommunications watchdog CTU has launched its first auction of fourth generation mobile telephony frequencies, with a fourth mobile operator likely to enter the market, its website said on Friday.

"CTU has done its best for the auction to be transparent, professional, and to accelerate the development of new mobile high-speed broadband services," CTU head Pavel Dvorak said.

A U.S. cyber war against Iran's nuclear program may have only just begun and could escalate with explosions triggered by digital sabotage, experts say.

Although the Iranian regime remains vulnerable to more cyber-attacks in the aftermath of the "Stuxnet" worm that disrupted its uranium enrichment work, Tehran may be receiving help from Russian proxies for its digital security, some analysts say.

Yahoo! on Thursday was digging into how hackers looted nearly a half million passwords and email addresses from one of its servers.

A hacker group calling itself D33DS posted online a massive trove of data it said was unencrypted in a file pilfered from the Sunnyvale, California-based Internet pioneer "as a wake-up call not as a threat."

Faded social news star Digg announced Thursday that it has been bought by online media company Betaworks in a move aimed at reviving the firm's cache.

The terms of the deal were not disclosed but online reports estimated the purchase price at $500,000.

San Francisco city officials on Thursday said that they have soured on Apple computers due to the Macintosh maker's decision to bail out of a program to promote making electronics earth friendly.

The California company behind coveted iPads, iPhones, iPods and Macbook computers in June abandoned the Electronic Product Environmental Assessment Tool global registry for "greener electronics" and did not respond to requests for comment about the move.

An Iraqi draft law that would jail web users for life for a variety of ill-defined crimes has been condemned by rights groups and activists who have slammed its vague language and hefty penalties.

Little more than a year after revolutions, in part sparked by Internet-based campaigns, rocked the Middle East and ousted several dictators, Human Rights Watch has warned the bill would "constitute serious curtailments" of Iraqis' freedoms, while activists have questioned many of the bill's provisions.

The online retail giant Amazon is testing a new smartphone and may launch production later this year or early next year, the Wall Street Journal reported Wednesday.

The story, datelined Taipei, said the company is working with Asian component suppliers to test the new device, which would enter a crowded market dominated by Apple's iPhone, Samsung's Galaxy handsets and LG models.

The European Commission presents proposals to limit automobile carbon emissions Wednesday that environmentalists complain will offer favored treatment to manufacturers of big German cars.

In a draft of the proposals obtained by Agence France Presse, the European Union executive calls for a cap on carbon dioxide (CO2) emissions by 2020 of an average 95 grams per kilometer per new passenger vehicle, against 130 grams today.