Jeremy KirkAustralia correspondent, IDG News Service

Malware virus

Six more US retailers attacked like Target, security firm says

IntelCrawler also identified a 17-year-old Russian who it says wrote the BlackPOS malware, a version of which was used against Target

snapchat

Spammers target Snapchat, Bitly, and Kik

Bitly is working with Symantec to clean up malicious links, the result of API keys left visible on the Web

wickr

Encrypted messaging startup Wickr offers $100K bug bounty

The company hopes to tap the security research community to find potential problems

chrome for android

New mobile Chrome feature can cut your data usage by up to half

The new versions of Chrome for Mobile will be available in the next few days

Dropbox works to resolve service hiccups, says files safe

A change due to be pushed out on Sunday should fix syncing problems and issue with Dropbox's mobile applications

vimeo logo

Vimeo moves to default HTML5 player, says videos load faster

Vimeo has rebuilt its video player using HTML5.

Zynga trials Bitcoin payments for in-game purchases

Players using Zynga's main portal can use bitcoins for seven games.

on pcworld.com

Report: NSA intercepts computer deliveries to plant spyware

Germany's Der Spiegel, citing secret documents, also reported the NSA has backdoors in Juniper, Cisco, Huawei and Dell products

bitcoin

Bitcoin market price app, 'Bitcoin Alarm,' is carefully cloaked malware

Arbor Networks says the application being advertised in spam messages contains a remote access Trojan.

on pcworld.com

Legal ruling

Supreme Court leaves online sales tax question to Congress

The court declined to review a New York law requiring collection of sales tax for online purchases.

on pcworld.com

bitcoin

Bitcointalk.org warns passwords in danger after DNS attack

Some users of the popular Bitcoin discussion forum are advised to change their passwords in the wake of a security breach.

Encrypted social network vies for disgruntled WhatsApp, Facebook users

Syme, a service built by three students in Montreal, touts the easy-to-use encryption of its social network.

bitcoin

Did Satoshi Nakamoto transfer 1,000 bitcoins to the Silk Road?

Mystery surrounds a sizable transfer in March between an early bitcoin account and the underground marketplace.

DoNotTrackMe

DoNotTrackMe browser extension creates 'disposable' data for privacy

A Boston-based company, Abine, is beefing its anti-tracking browser extension to let users shield their real credit card details, email addresses and phone numbers during web transactions.

Online gaming company settles complaint over secret bitcoin mining

Online gaming company settled civil complaint that it secretly installed bitcoin-mining code on subscribers' computers, netting more than $3,700 worth of virtual currency.

on pcworld.com