Welcome to Security Tech Talk Tuesday! This week’s word is firewall,an important, foundational element in securing your information. Please join me every week as I explain topics from advanced persistent threats to zero-day attacks to help you navigate conversations and lead your company’s cybersecurity strategy.

What is a firewall?

Firewall: A hardware or software system that blocks unauthorized traffic from entering (or leaving) a network.

Detail: A firewall is a doorway that limits communication between networks in accordance with security policies. It controls the flow of data and communications to prevent malicious traffic, including worms, viruses and links to phishing websites. Firewalls also enable organizations to monitor outbound traffic to prevent unauthorized contact with other systems and avert sensitive data leaks. Firewalls can exist in your datacenter, a hosted data center, or virtually. They allow you to plan, control and report on traffic that flows through your network. Adjacent solutions for firewalls are common and have become increasingly sophisticated. These includes threat management, internet protection, malware scanning and many more.

For additional information on firewalls, and other commonly used security terms, please read AT&T Cybersecurity Insights, our new report offering a comprehensive look at our analysis and findings from deep inside AT&T’s network operations groups, outside research firms, and network partners.

Tina Hampton Managed Security Services AVP AT&T About Tina