Facebook’s chief security officer said on Tuesday the social network has united with its Silicon Valley competitors to improve cyber security, after a recent report suggested the National Security Agency may have posed as the social network to infect target’s computers.

Joe Sullivan said that Facebook was working hard to “make sure the system is robust enough that everyone should be coming in the front door with legal process and not getting information any other way”. Read more

By Hannah Kuchler and Tim Bradshaw

Facebook unveiled the sleek, unfolding pages of its Paper app last month to appreciative oohs and aahs from reviewers, marking a new era for the social network as design becomes more central to companies up and down Silicon Valley.

Paper was developed with a small unit of designers who wanted to break away from the site’s basic ‘blue and white’ look to create an app inspired by the National Geographic magazine. Read more

A Flickr co-founder has been quietly compiling a map of the world’s stories in an attempt to transform location-based apps from drab star-based ratings and recommendations into a lively map packed with history, culture and personal tales.

From the historical Blue plaques that line London streets to maps of subcultures such as “Punk Rock in Chicago”, Caterina Fake’s new app Findery aims to help users discover new places in a more imaginative way. Read more

Nok Nok? Who’s there? Usually someone with a terribly easy to guess password, a cyber criminal’s dream. But perhaps not for long.

Lenovo, the Chinese PC and phone manufacturer, has invested in Nok Nok Labs, a cyber security start up which aims to transform the industry by replacing passwords with a new technology which works with everything from fingerprints to voice recognition.

Nok Nok Labs raised $16.5m from Lenovo as well as venture capitalists DCM and Onset Ventures on Thursday to create a platform which will support the latest authentication technology. Lenovo will join the board of Nok Nok – and the assumption is, use the new tech in its devices from laptops to smartphones. Read more

The one big US social network not blocked in China launches its new site there in beta today – as part of a Chinese push previously reported by the Financial TimesRead more

Facebook is facing a fresh legal challenge on whether it can use children’s images in adverts without the consent of their parents, its latest in a long line of privacy battlesRead more

“A million dollars isn’t cool. Do you know what’s cool? A billion dollars.” So early Facebook investor Sean Parker’s character said to a young Mark Zuckerberg in the film The Social Network.

Ten years on, the founder and chief executive of Facebook may have a new answer to what’s cool: a $150bn market capitalisation, almost $8bn in revenue and personal wealth estimated at $30bn. Read more

Yahoo has lost its chief operating officer who was in charge of steering the internet company’s advertising business, as it continues to lose share in the digital ad market.

Henrique de Castro is leaving swiftly after reports he fell out with Marissa Mayer, who poached him from her former home Google as part of her turnaround plan for the purple-plastered companyRead more

Twitter co-founder Biz Stone has unveiled his much-anticipated new product, a search engine for social networks called Jelly.

Jelly is designed for users to tap the knowledge of their networks, sending photos and asking questions of their friends and friends of friends. Mr Stone, who left day-to-day operations at Twitter a couple of years ago, co-founded the company in April but until now the product had top secret. Read more

President Barack Obama will meet technology leaders on Tuesday morning for a two-hour discussion about everything from the National Security Agency’s mass surveillance programme, to how the industry can address income inequality.

Big name tech executives from the eight companies which called on the US government to stop the spy agencies collecting such vast amounts of communications data will be pressing their case home “aggressively”, according to a spokesperson for one of the companies. Read more

The company also announced last week that it will help advertisers to target people who have already visited their website and tempt them back through promoted tweets. This so-called “retargeting” is common across the web and Twitter said trials had seen “impressive results”.

Advertisers recorded substantial increases in engagement and conversion rates, and a fall in the cost of acquiring a customer. But Twitter, which has been praised by campaigners for its privacy policies, said users can chose not to see tailored ads. Read more

Apple, the world’s largest public company by market capitalisation, has a problem. The lawyer appointed to ensure it is not price-fixing e-book sales is just too expensive.

The iPhone and iPad maker complained to the New York court this week that Michael Bromwich’s $1,100 an hour fee is “excessive” and he has not justified it as either “reasonable” or customary”. Read more

Pinterest, the online scrapbook recently valued at $3.8bn, will allow companies including Walmart, Nestle and Random House to show off the most popular pins about their products on their own websites. Read more

Until Twitter revealed its list of principal shareholders in its initial public offering filing, few knew who actually owned the company.

But now a new book published on Tuesday reveals how three co-founders split the stock and why Evan Williams may be the only one to become a billionaire from the offering.

 Read more

The first advert on Instagram, the social photo app owned by Facebook, was published on Friday to a chorus of complaints from users. Read more

 

Pinterest – the online scrapbook which started to show adverts just this month – has been valued at whopping $3.8bn in its latest round of fundraising.

This more than 50 per cent rise in valuation in only eight months shows investors have faith the site is transforming from the home of Mid-Western wedding planners to a store front for big brand marketers. Read more

By Hannah Kuchler in San Francisco and Arash Massoudi in New York

Any worries that Alibaba, China’s largest e-commerce company, would not be able to list its shares in the US appear to have been put to rest. The company, which is preparing for an initial public offering in the coming months, has received assurances from the New York Stock and Nasdaq that the partnership structure for its expected share offering will be permitted under the rules of both exchanges. According to media reports confirmed by a person familiar with the matter, Alibaba will now be able to go public with the structure that the Hong Kong Exchange refused to accept. NYSE, Nasdaq and Alibaba declined to comment. Read more

Twitter released an updated version of its initial public offering filing on Tuesday afternoon in the US, announcing it will list on the NYSE and giving details about its last three months as a private company.

Here are five things you need to know from the messaging platform’s release:

1. Losses are mounting. Net losses widened significantly from June to September, rising from $70m in the first six months, to $134m for the first nine months as the cost of revenue increased. Read more

Lookout, a leader in mobile security, has raised $55m in a fundraising round which saw Deutsche Telekom, the German telecoms company, and Qualcomm, the chipmaker.

The money will be used for expanding into selling its software to businesses and protecting the “Internet of Things”.

The San Francisco-based company also raised money from VC firms Greylock Partners and Mithril Capital Management, on top of getting more funding from its current investors Accel Partners, Andreessen Horowitz, Index Ventures and Khosla Ventures. Before this funding round, it had raised $76.5m in total.

John Hering, co-founder and chief executive, said the company wants to become the leading security firm for the “post-PC era” and hopes to work closely with Qualcomm to develop security software for the new wave of devices which are being connected to the internet. Read more

Twitter took advantage of the new Jobs Act to file the drafts of its initial public offering document in secret, denying journalists and investors the chance to watch its rough and tumble with the SEC.

But when the registration document was published on Thursday, the SEC also revealed the draft filings Twitter had made since it filed in private way back in July. There’s no big secret hiding here but a few interesting changes that give an indication of what Twitter may have been talking to the SEC about – although of course, they could have just decided to change it themselves. Read more