Security

Cisco polishes up a NAC blade for branch offices

* Cisco adds NAC blade to its branch office router

DRM for online versions of magazines

* Three approaches to electronic subscriptions

Data explosion shakes up IT

10 IT management companies still worth watching

Virtualization management, open source tool companies from last year’s 'Companies to Watch' list still cranking

Group releases free iPhone unlock hack

Year-old QuickTime bug gives hackers new drive-by attack

SEC charges four ex-Nortel execs with fraud

VPs allegedly carried out accounting fraud orders on behalf of company management

E-commerce, security issues challenge network firewall role

Jericho Forum ponders future role of traditional firewall

FCC details E911 location accuracy requirements; Does 802.11n spell the ‘end of Ethernet’

Diagnose car problems on your own