Q: What does a firewall do, and is it something I need to get? A: In the early days of the internet, we often connected through a dial-up modem or some other form of direct connection. When you ...

Question: What does a firewall do and is it something I need to get? Answer: In the early days of the internet, we often connected through a dial-up modem or some other form of direct connection. When ...

Adam Stone writes on technology trends from Annapolis, Md., with a focus on government IT, military and first-responder technologies. Firewalls are a key part of the overall security posture in higher ...