Original release date: September 10, 2018
When your computer is accessible through an internet connection or Wi-Fi network, it is susceptible to attack. However, you can restrict outside access to your computer—and the information on it—with a firewall.
What do firewalls do?
Firewalls provide protection against outside attackers by shielding your computer or network from malicious or unnecessary network traffic. Firewalls can also prevent malicious software from accessing a computer or network via the internet. Firewalls can be configured to block data from certain locations (i.e., computer network addresses), applications, or ports while allowing relevant and necessary data through.
What type of firewall is best?
Categories of firewalls include hardware and software. While both have advantages and disadvantages, the decision to use a firewall is more important than deciding which type you use.
Most commercially available firewall products, both hardware and software based, come pre-configured and ready to use. Since each firewall is different, you will need to read and understand the documentation that comes with it to determine whether the default firewall settings are sufficient for your needs. This is particularly concerning because the “default” configuration is typically less restrictive, which could make your firewall more susceptible to compromise. Alerts about current malicious activity sometimes include information about restrictions you can implement through your firewall.
Though properly configured firewalls may effectively block some attacks, do not be lulled into a false sense of security. Firewalls do not guarantee that your computer will not be attacked. Firewalls primarily help protect against malicious traffic, not against malicious programs (i.e., malware), and may not protect you if you accidentally install or run malware on your computer. However, using a firewall in conjunction with other protective measures (e.g., anti-virus software and safe computing practices) will strengthen your resistance to attacks.
Ask us about our Sophos XG Firewall
This product is provided subject to this Notification and this Privacy & Use policy.
What is enterprise network security?
Enterprise network security is the protection of a network that connects systems, mainframes, and devices―like smartphones and tablets―within an enterprise. Companies, universities, governments, and other entities use enterprise networks to help connect their users to information and people. As networks grow in size and complexity, security concerns also increase.
What security threats do enterprise wireless networks face?
Unlike wired networks, which have robust security tools—such as firewalls, intrusion prevention systems, content filters, and antivirus and anti-malware detection programs—wireless networks (also called Wi-Fi) provide wireless access points that can be susceptible to infiltration. Because they may lack the same protections as wired networks, wireless networks and devices can fall victim to a variety of attacks designed to gain access to an enterprise network. An attacker could gain access to an organization’s network through a wireless access point to conduct malicious activities—including packet sniffing, creating rouge access points, password theft, and man-in-the-middle attacks. These attacks could hinder network connectivity, slow processes, or even crash the organization’s system. (See Securing Wireless Networks for more information on threats to wireless networks.)
How can you minimize the risks to enterprise Wi-Fi networks?
Network security protocols have advanced to offset the constant evolution of attacks. Wi-Fi Protected Access 2 (WPA2) incorporates Advanced Encryption Standard (AES) and is the standard employed today to secure wireless enterprises. In June 2018, the Wi-Fi Alliance began certifying devices that support Wi-Fi Protected Access 3 (WPA3), which replaces WPA2. Users should employ the new standards as WPA3 devices become available. IT security professionals and network administrators should also consider these additional best practices to help safeguard their enterprise Wi-Fi networks:
Employing active WIDS/WIPS enables network administrators to create and enforce wireless security by monitoring, detecting, and mitigating potential risks. Both WIDS and WIPS will detect and automatically disconnect unauthorized devices. WIDS provides the ability to automatically monitor and detect the presence of any unauthorized, rogue access points, while WIPS deploys countermeasures to identified threats. Some common threats mitigated by WIPS are rogue access points, misconfigured access points, client misassociation, unauthorized association, man-in-the-middle attacks, ad-hoc networks, Media Access Control spoofing, honeypot/evil twin attacks, and denial-of-service attacks.
The following list includes best practices to secure WIDS/WIPS sensor networks. Administrators should tailor these practices based on local considerations and applicable compliance requirements. For more in-depth guidance, see A Guide to Securing Networks for Wi-Fi (IEEE 802.11 Family).
Silloway Support Team
Call today - 802 282-4255
Silloway Networks offers Enterprise level support to Small and Medium Businesses in Rutland, Addison, Windsor and Bennington Counties. Employing highly-skilled technicians and developing partnerships with best-of-breed technology providers allows Silloway Networks to provide personalized technology solutions to enhance the operation of your business.
Website by Silloway Networks