While McAfee's software may keep viruses from being passed between a handheld computer and corporate network, it doesn't prevent viruses from being delivered wirelessly to the PDA in the first place.

CNN: McAfee aims to shield networks from PDA viruses

The Internet Printing Protocol (IPP) replaces proprietary printing services with a single method for sending print jobs from a computer to any authorized printer connected to an IP network.

CNN: Technology - Engineers approve standardization of Internet Printing Protocol

With this gear workers can gain access to their computer files and messages from any phone set in the company network.

FORBES: Celtic charm

To refine its ratings and reflect the importance of new emerging technologies, the Review made several changes to last year's survey, adding questions ranging from whether a school offers network access in dorm lounges to if it has a computer ethics policy in place.

FORBES: The 25 Most Connected Campuses

They can also be used to transfer data, such as MP3 files, from one computer to another--or even to a home entertainment center--over a local area network.

FORBES: Cisco's Push For VoIP

During the investigation, Mr. Monsegur, who lived in and worked from a public-housing project in New York City, received information on a day-to-day basis of "upwards of two dozen vulnerabilities" in computer systems from a network of cybercriminals, Mr. Pastore said in court documents released Thursday.

WSJ: FBI's 'Sabu' Hacker Was a Model Informant

Since then, Anonymous has moved away from DDoS-ing websites, which can require either mass support from thousands of individuals or the use of a botnet (a network of infected computer which can be expensive or difficult to obtain).

FORBES: Anonymous Supporters Vow Revenge For Troy Davis

He was arrested in 2011 and charged in a scheme in which he allegedly logged into the computer network at the Massachusetts Institute of Technology and using it to download millions of academic journal articles from a database called JSTOR, owned by a nonprofit group.

WSJ: Legal Case Strained Troubled Web Activist