Lisa Phifer

As a mission critical service, VoIP deployments require careful assessment to identify and eliminate security vulnerabilities in VoIP clients,

Many consumers realize that hotspots can be risky, but fail to take even the most basic precautions. Why? Some underestimate the dangers, while others

As enterprises deploy VoIP, vendors are being challenged to provide toll-quality voice and predictable data delivery using shared WLAN infrastructure. 

From terrorist attacks to school shootings, tragedies repeatedly demonstrate the need for public safety readiness.  One critical component: helping first

The trickle of draft 802.11n products completing Wi-Fi certification gained momentum last week with Cisco’s Next Generation 802.11n Wireless

Unless you've been hiding in a cave for years, you know that everything sent over Wi-Fi is vulnerable to eavesdropping. A handful of hotspots now encrypt

Smartphones and PDAs have grown more capable and connected, but many mobile professionals use these devices without protecting the data they store and

A growing number of PDAs and smartphones are being used for business, but most lack the basic security measures currently used to protect mobile worker

Yesterday's road warriors lugged laptops, but a growing number of mobile professionals now carry internet-capable PDAs and smartphones. These increasingly

Since the birth of the public internet, host firewalls have been sound practice. But high-speed broadband and wireless access have heightened risk and

p>Over the past decade, electronic mail has become a mission critical business application, surpassing snail mail, phone calls, and paging to dominate