Lisa Phifer

After a full year of draft 802.11n deployment, we’ve reached the point where all major technical challenges have been resolved and enterprise WLANs run as well-oiled machines—right?   Of course not. Although Wi-Fi products and networks that incorporate them have clearly matured, IEEE 802.11 standards remain a work-in-progress.   Last Friday, I had the privilege […]

As a mission critical service, VoIP deployments require careful assessment to identify and eliminate security vulnerabilities in VoIP clients, applications, and infrastructure. But what exactly should you hunt for? Let’s explore a few security cracks commonly found in VoIP products that use SIP. Something old, something new Many VoIP handsets and softphones use SIP signaling […]

As a mission critical service, VoIP deployments require careful assessment to identify and eliminate security vulnerabilities in VoIP clients, applications, and infrastructure. But what exactly should you hunt for? Let’s explore a few security cracks commonly found in VoIP products that use SIP. Something old, something new Many VoIP handsets and softphones use SIP signaling […]

Many consumers realize that hotspots can be risky, but fail to take even the most basic precautions. Why? Some underestimate the dangers, while others lack the financial and IT support enjoyed by corporate users. Fortunately, anyone can protect himself or herself by taking a few simple, cost-free steps. Don’t talk to strangers You rarely know […]

As enterprises deploy VoIP, vendors are being challenged to provide toll-quality voice and predictable data delivery using shared WLAN infrastructure.  While prioritization helps, WLAN architecture and AP engineering can also make a huge difference.   According to Paul Curto, Senior Technical Marketing Engineer at Meru Networks, “For customers who are deciding amongst enterprise WLAN vendors, […]

From terrorist attacks to school shootings, tragedies repeatedly demonstrate the need for public safety readiness.  One critical component: helping first responders see perpetrators and their actions.  Government-operated cameras are widely deployed along city streets and interstate highways, while many private organizations are building their own surveillance networks.  IP video cameras sales are expected to grow […]

The trickle of draft 802.11n products completing Wi-Fi certification gained momentum last week with Cisco’s Next Generation 802.11n Wireless announcement. The splashy new Aironet 1250 Series AP, available with 2.4 and 5 GHz radio modules that comply with 802.11n draft 2.0, will ship this October. Expanding the Unified Wireless Network family Cisco’s next-generation offering is […]

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 user data—usually with WPA—but the vast majority still expect customers to protect themselves. Sadly, many users continue to ignore even this simple threat. Those who know better often defend […]

Smartphones and PDAs have grown more capable and connected, but many mobile professionals use these devices without protecting the data they store and send. ISPs can offer mobile security products and services to help subscribers mitigate these risks. In Part 1 of this series, we introduced common mobile device capabilities. In Part 2 of this […]