Martyn WilliamsSenior U.S. Correspondent, IDG News Service

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Martyn Williams covers mobile telecoms, security, Silicon Valley, and general technology breaking news for the IDG News Service, and is based in San Francisco.

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Silent Circle's privacy-focused Blackphone 2, Blackphone+ tablet target businesses

Alongside the Blackphone 2 secure smartphone and a tablet, the company is introducing a new enterprise conference-calling service

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SanDisk new microSD card packs a whopping 200GB of storage

The card can hold around 20 hours of high-def video.

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Samsung to launch Samsung Pay mobile payments system in challenge to Google, Apple

The Android smartphone maker will launch Samsung Pay in the US in mid 2015

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Firefox OS coming to U.S., developed markets in 2016

Mozilla and telecom carriers see demand for high-end flip phones, so that's where Mozilla is heading.

PCWorld News

HTC One M9 revealed ahead of official launch

The new 5-inch phone is one of several coming at Mobile World Congress

PCWorld News

Samsung, SKT to demonstrate 7.5Gbps wireless data next week

The prototype '5G' cellular system will use beamforming antennas to realize the high speed

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Drone backers mostly welcome FAA's proposed rules

Industry watchers are generally pleased with the proposed commercial drone rules.

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FAA proposes opening skies to commercial drones

Automated delivery drones, like those proposed by Amazon, would remain grounded under the FAA's proposed rules.

PCWorld News

FAA seen ready to open skies to commercial drones

Proposed rules allowing commercial drone flight will be published on Sunday morning

PCWorld News

US government courts Silicon Valley on cybersecurity

A day-long summit in Silicon Valley hopes to promote better information sharing with private companies

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Jeb Bush's privacy-shattering email cache hid another surprise: Viruses

There is old malware in attachments included in the Outlook email files

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China's Xiaomi takes first step into U.S. market

The company will launch a phone accessory store later this year.

PCWorld News

More online censorship coming to closed countries, says report

The worst countries for press freedom are expected to increase control of the Internet, says Paris-based RSF

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Smartphone thefts plummet after kill-switch introduction

Thefts and robberies of smartphones fell in three big cities with iPhones leading the pack

PCWorld News

China seen targeting banks, military in Forbes web attack

Flash and Internet Explorer vulnerabilities were used in targeted attack, say security companies