Next Generation Cloud Firewall

Simplify your network with  Cloud Firewall.
Financial and high data sensitive organizations have a lot of physical security in place. Securely embracing the cloud and delivering a fast user experience requires local internet breakouts. But, securing internet traffic with traditional UTM and NGFW appliances requires deploying stacks of security appliances in all locations, which is cost prohibitive and extremely difficult to manage.  

Cloud Firewall
Cloud firewalls are virtual network security devices deployed in the public cloud. Public cloud firewalls tend to offer capabilities similar to those of hardware firewalls. However, in hybrid cloud deployments, public cloud firewalls offer significant advantages over on-premises devices in terms of scalability, availability and extensibility. Often also called "virtual firewalls," these devices are referred to as “public cloud firewalls” when used in those environments.   Cloud firewalls block cyber attacks directed at these cloud assets. As the name implies, a cloud firewall is a firewall that is hosted in the cloud. Cloud-based firewalls form a virtual barrier around cloud platforms, infrastructure, and applications, just as traditional firewalls form a barrier around an organization's internal network. Deploying a cloud firewall is like replacing a local security cameras and a physical security guard with a global 24/7 security center that has a centralized staff and security camera feeds from all the places.  

What does Firewall-as-a-Service (FWaaS) mean?
Firewall-as-a-Service, or FWaaS for short, is another term for cloud firewalls. Like other "as-a-Service" categories, such as Software-as-a-Service or Platform-as-a-Service, a FWaaS runs in the cloud and is accessed over the Internet, and third-party vendors offer them as a service that they update and maintain.  

What is the difference between a cloud firewall and a next-generation firewall (NGFW)?
A next-generation firewall (NGFW) is a firewall that includes new technologies that weren't available in earlier firewall products.   Intrusion Prevention System (IPS) An intrusion prevention system detects and blocks cyber attacks.  
Deep packet Inspection (DPI) NGFWs inspect data packet headers and payload, instead of just the headers. This aids in detecting malware and other kinds of malicious data.  
Application Control NGFWs can control what individual applications can access, or block applications altogether. NGFWs may have other advanced capabilities as well.   "Next-generation firewall" is a broadly applied term, but NGFWs don't necessarily run in the cloud. A cloud-based firewall may have NGFW capabilities, but an on-premises firewall could also be an NGFW.  

How does cloud computing affect the network perimeter?
The network perimeter is the division between the internal network an organization manages, and the network access provided by an external vendor, usually an Internet service provider (ISP). In other words, the network perimeter is the edge of what an organization has control over. Networks can be physically locked down as well: an employee of a company may have to be in the office and using a company-managed device to connect to the corporate network. Firewalls were initially designed to control this type of network perimeter and not let anything malicious through.   In cloud computing, the network perimeter essentially disappears. Users access services over the uncontrolled Internet. A user's physical location, and sometimes the device they're using, no longer matters. It's difficult to put a layer of security around corporate resources, because it's almost impossible to determine where the security layer should go. Some companies resort to combining a number of different security products, including traditional firewalls, VPNs, access control, and IPS products, but this adds a lot of complexity to IT and is difficult to manage.  

What does the Web Application Firewall do?

The Web Application Firewall (WAF) protects cloud properties from vulnerability exploits, helps stop DDoS attacks, and allows IT admins to write their own custom firewall rules. Companies can deploy the WAF in front of any type of cloud deployment – hybrid cloud, multicloud, public cloud, etc.      

Benefits of Public Cloud Firewalls  
Public cloud firewalls address the limitations of on-premises firewalls and more. Running on the CSP’s infrastructure, these virtual firewalls are highly available because they take advantage of the CSP’s investments in redundant power and heating, ventilation and air conditioning (HVAC), as well as network services and automated backup systems to prevent data loss in the event of a site failure.  

As an organization’s cloud presence grows, public cloud firewalls scale gracefully by adding virtual instances, with no hardware installation or maintenance required. Even bandwidth-hogging threats, such as distributed denial-of-service (DDoS) attacks, can be mitigated quickly and effectively using public cloud firewalls.   Unlike on-premises firewalls, public cloud firewalls are deployed in close proximity to the assets they protect. This configuration avoids the bandwidth drain associated with backhauling traffic from the region to the data center and may reduce or eliminate the fees CSPs impose on traffic crossing regional boundaries. Even the CSP’s perimeter doesn’t constitute a barrier, thanks to interconnection agreements between most major CSPs.  

How Public Cloud Firewalls Work  
Like their on-premises counterparts, public cloud firewalls identify and control applications, grant access through user-based policies, and prevent known and unknown threats from entering the network perimeter. Public cloud firewalls provide application visibility across an entire multi-cloud environment, helping organizations make better informed decisions about security policies and procedures. Automation and centralized management enable developers to embed next-generation security in the application development lifecycle, ensuring security functionality can keep pace with cloud native development strategies and DevOps principles, such as continuous integration and continuous delivery (CI/CD).   Given the increasing sophistication of advanced threats, perimeter breaches are inevitable.

Today’s cyberthreats often compromise individual workstations or users and then move laterally across a network, gaining access privileges as they move, and placing mission-critical applications and data at risk wherever they are located. Top-tier public cloud firewalls support segmentation and microsegmentation strategies that isolate critical applications and data in secure segments to block lateral movement of threats and streamline regulatory compliance.   Public cloud firewalls work best when designed and configured to work in concert with the provider’s native security solutions, with no gaps. It is a best practice for an organization to procure public cloud firewalls from cybersecurity vendors who have jointly developed their solutions with the CSPs the organization intends to use.  


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