article thumbnail

What Is a Firewall and Do you Need One?

Adam Levin

A firewall is a network security device or program designed to prevent unauthorized and malicious internet traffic from entering a private network or device. Firewalls filter incoming network traffic at a computer’s entry points, or ports, where information is exchanged between the computer network and external devices.

Firewall 298
article thumbnail

Palo Alto Networks fixed multiple DoS bugs in its firewalls

Security Affairs

Palo Alto Networks fixed several vulnerabilities in its PAN-OS operating system, including 3 issues that can trigger a DoS condition on its firewalls. Repeated attacks can eventually trigger a DoS condition by forcing the firewall into maintenance mode, requiring manual intervention to restore online functionality.

Firewall 123
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

How to Perform a Firewall Audit in 11 Steps (+Free Checklist)

eSecurity Planet

A firewall audit is a procedure for reviewing and reconfiguring firewalls as needed so they still suit your organization’s security goals. Auditing your firewall is one of the most important steps to ensuring it’s still equipped to protect the perimeter of your business’ network.

article thumbnail

What Is a Firewall Policy? Steps, Examples & Free Template

eSecurity Planet

A firewall policy is a set of rules and standards designed to control network traffic between an organization’s internal network and the internet. Featured Partners: Next-Gen Firewall (NGFW) Software Learn more Table of Contents Toggle Free Firewall Policy Template What Are the Components of Firewall Policies?

article thumbnail

VulnRecap 1/16/24 – Major Firewall Issues Persist

eSecurity Planet

Keep an eye out for security announcements from your firewall vendors; it’s possible additional similar vulnerabilities will come to light. The problem: Juniper Networks released a bulletin about a remote code execution vulnerability in its SRX firewalls and EX switches. This vulnerability is tracked as CVE-2024-21591.

article thumbnail

What is SIEM? Security information and event management explained

CSO Magazine

Security information and event management (SIEM) tools collect and aggregate log and event data to help identify and track breaches. A SIEM tool's goal is to correlate signals in all that data together to provide security teams with the information they need to identify and track breaches and other problems.

Antivirus 122
article thumbnail

Next-Generation Firewalls: A comprehensive guide for network security modernization

CyberSecurity Insiders

AT&T does not adopt or endorse any of the views, positions, or information provided by the author in this article. The terms computer security, information security and cybersecurity were practically non-existent in the 1980s, but believe it or not, firewalls have existed in some form since that time.