Gregg Keizergkeizer@computerworld.com, Computerworld Follow me on Google+

Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld.

Pwn2Own hacking contest puts record $560K on the line

HP TippingPoint, the long-time organizer of the annual Pwn2Own hacking contest, has revamped the challenge for the second year running and will offer cash awards exceeding half a million dollars, more than five times the amount paid out last year.

on pcworld.com

Smartphone, tablet users downloaded 1.76 billion apps after Christmas

Analytics company Flurry says 50 million devices were activated

Google Maps tops 10 million downloads on iOS App Store

Google made up for months off iPhone with 48-hour return rush.

Apple on track to meet 100-market target for iPhone 5 launch

Apple said that the iPhone 5 will reach retail in South Korea on Dec. 7 and another 54 countries later this month.

AT&T adds six more LTE cities

AT&T said Monday it has upped its LTE wireless network reach to 109 markets, by adding six cities in Puerto Rico as well as Albuquerque, N.M., Reading, Pa., and Salt Lake City

on techhive.com

iPad grabs top spot as preferred Black Friday shopping tool

Apple retained its stranglehold on mobile shopping over the two-day stretch of Thanksgiving and Black Friday in the U.S., IBM said.

iPhone 5 edges toward supply-demand balance

iPhone 5 supplies continued to improve this week as Apple reduced the wait time for delivery to "2 weeks" on its online store.

Apple to kill Messages beta for OS X Lion next month

Apple has told Mac owners running OS X Lion that the beta of Messages, its replacement for both the older iChat instant messaging service and SMS (short message service) texting, will expire Dec. 14.

Google sandboxes Flash in Chrome for OS X

Google has shipped a stronger Flash Player sandbox for the OS X version of Chrome, making good on an August promise to ship a Mac browser better able to ward off exploits of the Adobe software.

Adobe, now 'married' to Microsoft, moves Flash updates to Patch Tuesday

Adobe on Tuesday announced that it will pair future security updates for its popular Flash Player with Microsoft's Patch Tuesday schedule.

on pcworld.com

OS X Snow Leopard shows signs of becoming Apple's XP

One in four Macs now run OS X Mountain Lion, Apple's newest operating system, data released last week showed.

Tablet trade-ins spike as Apple event nears

Even before Apple sent invitations for the Tuesday launch event where it will likely unveil a smaller iPad, consumers were unloading their old tablets so they can trade up to Apple's latest, according to gadget buy-back firm Gazelle.

Apple tries to kill its own Java on most Macs

Apple yesterday started scrubbing most Macs of older Java browser plug-ins, a move that will force users to download the software from Oracle.

Mozilla pulls new Firefox version over security concerns

A vulnerability could allow a malicious website to capture a person's Web history

Microsoft terms talk of Office on iPad 'inaccurate'

Microsoft today disavowed comments made by its Czech subsidiary that the company will roll out iOS and Android apps of its Office suite early next year.