You can soon download films on mobiles in 5 seconds

On the outskirts of this sleepy commuter town just south of London, plans are underway to build the fastest cellphone network in the world.

The work is being done at the University of Surrey with some of the world's biggest tech companies, including Samsung and Fujitsu collaborating to offer mobile internet speeds more than 100 times faster than anything now available. Their work on so-called fifth-generation, or 5G, wireless technology is set to be completed in early 2018 and would, for example, let students download entire movies to smartphones or tablets in less than five seconds, compared with as much as eight minutes with current 4G technology .

Companies also could connect millions of devices - including smartwatches and tiny sensors on home appliances - to the new cellphone network, and automakers could potentially test driverless cars around the suburban campus.

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Goodbye password, hello selfie? MasterCard launching new technology

MasterCard wants to ditch the old-fashioned password and use selfies to approve online purchases.

The company announced it is launching new mobile technologies that will allow customers to authenticate their online purchases using selfies or fingerprints.

The technology will be rolled out by big banks in the U.S., Canada, the U.K. and some European countries over the next few months.

People from around the world will be regularly using this authentication technology within five years, said Ajay Bhalla, president of enterprise security solutions at MasterCard.

Bhalla said that using facial and fingerprint scans for purchases is safer than typed passwords since many customers foolishly use easy-to-guess codes.

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