Martyn WilliamsSenior U.S. Correspondent, IDG News Service

Follow me on Google+

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

PCWorld News

Amazon wants some Alibaba magic on Prime Day

The online retailer appears to have taken some inspiration from China with its upcoming sales event.

servers, data center

China retains supercomputing crown as U.S. representation lingers near historic lows

The U.S. is close to an all-time low number of machines in the list.

PCWorld News

OPM director resigns after unprecedented data breach

Katherine Archuleta stands down a day after scale of the massive breach was made clear

PCWorld News

OPM hackers stole data on 21.5m people, including 1.1m fingerprints

Latest update reveals the massive size of the data breach

PCWorld News

Software update caused NYSE suspension

An incompatibilty between new software and customers' systems was the cause

PCWorld News

US Defense Secretary to renew call for cooperation with tech industry

Ash Carter will speak to big-name execs at the secretive Sun Valley conference

PCWorld News

Glitch brings major disruption to NYSE trading

The exchange quickly ruled out a cyberattack

samsunggalaxys6

Samsung's profit squeezed by Galaxy S6 Edge shortage

The company couldn't meet demand for the S6's distinctive curved screen.

google self driving car june 29 2015

Watch as we follow one of Google's new self-driving cars

The vehicles represent a big technical leap forward

instagram logo

Instagram said to be back in North Korea

The block of the photo sharing website disappears with as much mystery as it appeared.

PCWorld News

US visa system coming back online after major outage

Hundreds of thousands of people are waiting for US visas after significant system problems

PCWorld News

SEC said to be probing corporate hacks by FIN4 group

Group sends sophisticated phishing emails to gain information about mergers and acquisitions

windows xp pc

The US Navy's warfare systems command just paid millions to stay on Windows XP

Windows XP and other obsolete systems remain critical to the Navy's operations.

instagram logo

After photo leak, North Korea said to block Instagram

Fire at iconic hotel could be trigger for the country's first known Internet filter.

google driverless car 100537575 large

Google's driverless car fleet to double as it prepares for new tests

The company operates more than half of the autonomous cars permitted to drive on California roads