Apple chief executive Tim Cook said Monday the technology giant's new music service has some 6.5 million subscribers.

"It is going really well," Cook during an on-stage chat on the opening evening of a Wall Street Journal technology forum on the Southern California coast.

Hackers linked to the Chinese government kept up efforts to break into U.S. computer networks even after a cybersecurity agreement between the two countries announced last month, researchers said Monday.

A report by the security firm CrowdStrike said it detected hacking efforts as soon as one day after U.S. President Barack Obama and his Chinese counterpart Xi Jinping announced an agreement not to conduct or condone cyber attacks on each other's private sectors for commercial gain.

A U.S. jury on Friday declared that Apple owes $234 million in damages for infringing on mobile chip technology patented by University of Wisconsin researchers.

"This is a case where the hard work of our university researchers and the integrity of patenting and licensing discoveries has prevailed," said Carl Gulbrandsen, managing director of the nonprofit Wisconsin Alumni Research Foundation which brought the suit.

The company behind online dating services Tinder, Match and OkCupid notified U.S. regulators on Friday that it plans to look for love from investors by going public on Wall Street.

The Match Group will seek to raise $100 million with an initial public offering of shares on the Nasdaq, trading under the symbol "MTCH," according to a filing with the U.S. Securities and Exchange Commission.

Dozens of major websites including Netflix, Uber and the BBC went down simultaneously on Thursday in some areas of the United States, but were soon up again in most cases.

The cause of the crashes remained unclear, but some appeared connected to trouble at a cloud service relied on by companies, although that did not stop the social media rumor and conspiracy mill from going into overdrive.

A U.S. jury on Tuesday found that chips powering coveted Apple mobile devices infringe on technology patented by Wisconsin University researchers.

The case is to proceed to liability and damages phases that could end with the California-based technology giant being hit with a tab in the hundreds of millions of dollars, according to court documents.

An antitrust monitor imposed on Apple as the result of an e-book price-fixing case two years ago will end his stint on Friday, according to a judge's ruling.

"The monitor has ably performed a significant public service in a difficult environment," U.S. district court Judge Denise Cote said in a brief ruling on Tuesday.

Facebook said on Tuesday it is testing an array of features aimed at getting people to watch more videos at the leading social network.

The new tools come in a growing challenge to YouTube, which would be sidestepped as viewers flit between videos at Facebook.

Mobile Internet sites face a new threat as millions download ad-blockers to their phones and tablets, removing pesky adverts but potentially wiping out billions of dollars in advertising revenue.

There were close to 200 million downloads of ad-blocking software by mid-2015, according to research firm PageFair, but only 1.6 percent of the blocking was done on mobile devices rather than computers.

The rapid spread of mobile phones across Sub-Saharan Africa is transforming the region, but record levels of growth are due to slow sharply, an industry report said this week.

The industry contributed more than $100 billion to the region's economy last year -- equivalent to 5.7 percent of gross domestic product, according to a study released at a conference in Cape Town by the GSMA association which represents mobile operators.