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. There are different types of firewalls. Firewalls can be software- or hardware-based.

Experts Explain How to Bypass Recent Improvement of China’s Great Firewall

Security Affairs

Experts from Great Firewall Report analyzed recent upgrades to China’s Great Firewall and revealed that it can be circumvented. Great Firewall Report experts revealed that recent versions of Shadowsocks (3.3.1 and earlier) could bypass the firewall.


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Cisco Secure Firewall on AWS: Build resilience at scale with stateful firewall clustering

Cisco CSR

Organizations may introduce multiple individual firewalls into their AWS infrastructure to produce this outcome. To solve these challenges, Cisco created stateful firewall clustering with Secure Firewall in AWS. Cisco Secure Firewall clustering overview.

Backdoor in Zyxel Firewalls and Gateways

Schneier on Security

This is bad : More than 100,000 Zyxel firewalls, VPN gateways, and access point controllers contain a hardcoded admin-level backdoor account that can grant attackers root access to devices via either the SSH interface or the web administration panel. […].

Types of Firewalls Explained

eSecurity Planet

Firewalls are as central to IT security as antivirus programs are to PCs, and the multi-billion-dollar market remains large and growing. But the term “firewall” is far too broad to be of much use to IT security buyers. Types of Firewalls. What is a Firewall?

Threat Trends: Firewall

Cisco Retail

In any perimeter defense a key component is firewalls—the proverbial guard towers in your fortifications. In this Threat Trends release, we’ll be looking at Cisco Secure Firewall. The goal is to highlight the common threats that organizations encounter and block with Secure Firewall.

Poor Firewall Implementations Pave Wave for DDoS Attacks

Security Boulevard

Organizations often tend to heavily and exclusively rely on firewalls, load balancers, and VPNs, among others, to prevent DDoS attacks, secure their mission-critical assets, and protect their IT infrastructure.

Cisco Secure Firewall to Support Microsoft Azure Gateway Load Balancer

Cisco Retail

Microsoft’s recent announcement of its upcoming Azure Gateway Load Balancer is great news for organizations requiring rapidly scalable firewalls with high availability in public cloud. What does this mean for Cisco Secure Firewall customers? Cisco Secure Firewall.

The Total Economic Impact™ of Cisco Secure Firewall

Cisco CSR

Cisco commissioned Forrester Consulting to conduct a Total Economic Impact (TEI) study to examine the value that Secure Firewall customers could achieve by deploying Secure Firewall, Firewall Management Center, and optionally SecureX.

SecureX and Secure Firewall: Integration and Automation to Simplify Security

Cisco CSR

Cisco Secure Firewall stops threats faster, empowers collaboration between teams, and enables consistency across your on-premises, hybrid, and multi-cloud environments. The entire suite of Firewall Management Center APIs is now available in the cloud.

Cisco Secure Firewall named Best Next Generation Firewall in SE Labs 2021 Annual Report

Cisco Retail

Cisco is proud to be the only vendor recognized by SE Labs as Best Next Generation Firewall (NGFW) in their 2021 Annual Report. The award validates that you can expect consistent threat protection and performance with Cisco Secure Firewall. Learn more about Cisco Secure Firewall.

Automate your Cisco Secure Firewall deployment

Cisco Retail

I nfrastructure as a Code (IaC) and Automation are now common requests from our customers deploying Cisco Secure Firewalls. Our response to this trend is making Cisco Secure Firewall deployable as a code utilizing new IaC templates , which we are happy to announce!

Scale security on the fly in Microsoft Azure Cloud with Cisco Secure Firewall

Cisco CSR

The release of Microsoft Azure Gateway Load Balancer is great news for customers, empowering them to simply and easily add Cisco Secure Firewall capabilities to their Azure cloud infrastructure. Benefits of Cisco Secure Firewall with Azure Gateway Load Balancer. Cisco Secure Firewall.

Network Firewall vs. Web Application Firewall (WAF)

Security Boulevard

Businesses are taking a closer look at their firewall’s capabilities and considering mixing and matching technologies to cover new security gaps. . Continue reading Network Firewall vs. Web Application Firewall (WAF) at Sucuri Blog.

Back to the Future of Firewall

Cisco Retail

As a network and workload security strategy leader, I spend a lot of time thinking about the future of the good old network firewall. Spoiler alert: I’m not going to join the cool club of pronouncing the firewall dead. Insert Your Firewall Here. Read Me First.

The Wait is Over for Secure Firewall 3100 Series

Cisco CSR

“I so look forward to the next firewall hardware upgrade cycle!”. – If I learned one thing from my firewall customers over the many years, it would be that they like to upgrade their hardware appliances as much as an average consumer likes to shop for a new car.

Cisco Secure Firewall Garners a ‘Hat-Trick’

Cisco Retail

Along similar lines, Cisco Secure Firewall celebrates three scores in 2021: Cisco was the only vendor recognized by Frost & Sullivan with the Best Practices Market Leadership Award for excellence in the network firewall market. Security Cisco Secure Firewall Zero Trust

Introducing new cloud resources page for Cisco Secure Firewall

Cisco CSR

To help our customers and partners, we have centralized all our cloud & automation resources for Secure Firewall into a single page: [link]. Our new page is organized by cloud provider and specific use case to easily deploy Secure Firewall.

Securing Remote Workers With Firewall-as-a-Service

Security Boulevard

How have targeted cyberattacks and advanced persistent threats (APTs) influenced the development of next-generation firewalls? And can firewall-as-a-service. The post Securing Remote Workers With Firewall-as-a-Service appeared first on Security Boulevard.

Lower costs with Cloud-delivered Firewall Management Center

Cisco CSR

Even something as critical as a firewall, the sentinel in the security stack, can often require a lengthy setup, ongoing maintenance, and disjointed management. At Cisco we have a rich history overcoming this challenge with Cisco Secure Firewall.

Zyxel 0day Affects its Firewall Products, Too

Krebs on Security

Today, Zyxel acknowledged the same flaw is present in many of its firewall products. “We’ve now completed the investigation of all Zyxel products and found that firewall products running specific firmware versions are also vulnerable,” Zyxel wrote in an email to KrebsOnSecurity.

NG Firewall for Home Use

Security Boulevard

The post NG Firewall for Home Use first appeared on Untangle. The post NG Firewall for Home Use appeared first on Security Boulevard. Your home network is your gateway to the internet.

Protecting against Log4j with Secure Firewall & Secure IPS

Cisco Retail

This blog details quick ways Secure Firewall Threat Defense (FTD) and Secure IPS users can protect against attacks leveraging this vulnerability while patching their infrastructure. Security Cisco Secure Firewall

A New Way of Firewalling with Cisco Secure Firewall Cloud Native

Cisco Retail

With application environments becoming dynamic, there is a desperate need for security tooling, including firewalls, to do the same. Whether on-premises or in public or private clouds, Secure Firewall Cloud Native empowers NetOps and SecOps teams to run at DevOps speed.

What Firewalls Can — and Can't — Accomplish

Dark Reading

Understanding the limitations of firewalls is important to protecting the organization from evolving threats

Securing Multicloud Environments with Cisco Secure Firewall Threat Defense on Alkira Cloud

Cisco Retail

Cisco Secure Firewall Threat Defense provides unmatched security controls such as stateful firewalling, Snort3 IPS, URL filtering, malware defense, application visibility and control, and more. Cisco Secure Firewall Threat Defense 7.1 Cisco Secure Firewall Threat Defense .

The Pros and Cons of Managed Firewalls

Dark Reading

Managed firewalls are increasingly popular. This post examines the strengths and weaknesses of managed firewalls to help your team decide on the right approach

Save time with Dynamic Attributes for Cisco Secure Firewall

Cisco Retail

The shift of applications and the associated security controls within dynamic cloud environments create challenges for firewall teams to keep up with security requirements. Secure Firewall Threat Defense 7.0 Dynamic Objects Configuration Guide for Firewall Management Center (FMC).

Cisco Secure Firewall insertion using Cisco cAPIC in Azure

Cisco Retail

Traditional firewall integration in on-prem Data Centers. ILB load balances traffic from the consumer EPGs to the internet through multiple Cisco Secure Firewalls (NGFWv). The above network topology depicts Cisco Secure Firewall in the hub VNET (overlay 2) in Azure.

Mitigating Dynamic Application Risks with Secure Firewall Application Detectors

Cisco Retail

As part of our strategy to enhance application awareness for SecOps practitioners, our new Secure Firewall Application Detectors portal, [link] , provides the latest and most comprehensive application risk information available in the cybersecurity space.

Chinese DriftingCloud APT exploited Sophos Firewall Zero-Day before it was fixed

Security Affairs

China-linked threat actors exploited the zero-day flaw CVE-2022-1040 in Sophos Firewall weeks before it was fixed by the security vendor. and impacts Sophos Firewall versions 18.5 “This particular attack leveraged a zero-day exploit to compromise the customer’s firewall.

4 Flaws, Other Weaknesses Undermine Cisco ASA Firewalls

Dark Reading

More than 1 million instances of firewalls running Cisco Adaptive Security Appliance (ASA) software have four vulnerabilities that undermine its security, a researcher finds

Scalable Security with Cisco Secure Firewall Cloud Native

Cisco Retail

This is where Cisco Secure Firewall Cloud Native (SFCN) comes in. Cisco Secure Firewall Cloud Native brings together the benefits of Kubernetes and Cisco’s industry-leading security technologies, providing a resilient architecture for infrastructure security at scale.

Sophos XG Firewall Review: Pricing & Features

eSecurity Planet

Sophos Firewalls are good candidates for mid-sized and distributed enterprises and those already using Sophos’ endpoint protection solution. See our complete list of the Best Next-Generation Firewall (NGFW) Vendors. Sophos was named a Customer’s Choice in the April 2022 Gartner Peer Insights Voice of the Customer: Network Firewalls report. It provides next-generation firewall protection that’s relatively easy to set up and manage. Bottom Line.

Firewalls and the Plateau of Productivity

Security Boulevard

Firewalls: Something every architect is familiar with. At some point in your IT career, it’s likely you’ve had to deploy and configure a firewall and most likely it was a painful experience not easily forgotten. Something that still raises many of our heart rates.

New Russia Malware targets firewall appliances

CyberSecurity Insiders

Interestingly, Cyclops Blink has been operational since June 2019 and is now being developed into espionage conducting software from just a mere persistent remote access malware accessing WatchGuard Firewall appliances.

Sophos Firewall affected by a critical authentication bypass flaw

Security Affairs

Sophos has addressed a critical vulnerability, tracked as CVE-2022-1040, in its Sophos Firewall that allows remote code execution (RCE). Sophos has fixed an authentication bypass vulnerability, tracked as CVE-2022-1040, that resides in the User Portal and Webadmin areas of Sophos Firewall.

Sophos warns of a new actively exploited flaw in Firewall product

Security Affairs

Sophos warns that a critical code injection security vulnerability in its Firewall product is actively exploited in the wild. Sophos warns of a critical code injection security vulnerability, tracked as CVE-2022-3236, affecting its Firewall product which is being exploited in the wild.

What is a Personal Firewall?


Firewalls are a term many know as protective of their computers from cyberattacks, but not many know what they do and why they need it (if at all). Data Privacy Data Protection Firewall Network Security Online Privacy Online Safety PC security

Simplify Network Security with Cisco Secure Firewall-as-a-service (FWaaS) on AWS

Cisco Retail

With traditional firewalls, network security teams are charged with the heavy lifting of deploying new solutions. According to Gartner, by 2025, 30% of new deployments of distributed branch-office firewalls will switch to firewall-as-a-service, up from less than 10% in 2021.

Cloudflare Adds Serverless Firewall Service

Security Boulevard

Cloudflare today revealed it has added a firewall to the services it provides on its content delivery network (CDN) that is based on a serverless computing framework. The post Cloudflare Adds Serverless Firewall Service appeared first on Security Boulevard.

Cisco Secure Firewall: Sometimes, updates are great news

Cisco Retail

Secure Firewall Threat Defense 7.0 Secure Firewall Threat Defense 7.0 For Cisco Secure Firewall 1000, 2100, 4100 and 9300 series, updating your firewall to Threat Defense 7.0 Security Cisco Secure Firewall network security

Cisco Supports Secure Firewall Threat Defense Virtual on Nutanix AHV

Cisco Retail

Today, Cisco is giving you that power by expanding the support of Cisco Secure Firewall Threat Defense Virtual (formerly FTDv/NGFWv) to Nutanix AHV. If you are already taking advantage of Secure Firewall Thread Defense Virtual, you can now run your appliance in Nutanix AHV.