DNS filtering for businesses is essential for all companies to protect against web-based threats such as phishing and malware and is particularly important for any business that allows employees to work remotely. In this post we explain the risks, features, and benefits of DNS filtering and how a DNS filter can protect employees and their portable devices from Wi-Fi threats.

Why is DNS Filtering for Businesses so Important?

DNS filtering for businesses can no longer be considered an optional cybersecurity solution due to the high risk of web-based attacks. Phishing attacks on businesses are increasing with many thousands of new phishing web pages created each day. Exploit kits probe for vulnerabilities and silently download malware, and ransomware attacks are rife.  DNS filtering for businesses offers an additional layer of protection that prevents employees from visiting websites known to be used for malicious purposes.

DNS filters also allow businesses to enforce acceptable Internet usage policies and block access to illegal website content, websites containing content unsuitable for the workplace and categories of sites that are a major drain on productivity.

It is easy to set up DNS filtering for businesses’ internal networks and apply content controls and block online threats; however, a DNS filter is not restricted to one physical location. DNS filtering for businesses is not bound to a single location and works on wired networks, internal WiFi networks and even public WiFi hotspots.

The Dangers of Public WiFi Networks

A recent survey conducted by Purple revealed more than 90% of businesses that offer Wi-Fi have open networks without any filters or security applied. Connecting to open Wi-Fi networks without any filtering controls in place increases the risk of virus, malware, and ransomware downloads.

To a certain extent, risk can be reduced if anti-malware software is installed on mobile devices. However, the software is only capable of detecting malware variants if their signatures are in the database. If the database is out of date, malware will not be detected. Anti-malware software also does not provide protection against zero-day malware – new malware variants that have yet to be identified – and offers no protection against phishing attacks.

Further, hackers take advantage of open Wi-Fi networks to conduct man-in-the-middle attacks to intercept sensitive data such as banking credentials and other login information. Mobile workers often connect to their work networks and on portable devices via open Wi-Fi networks such as those offered in coffee shops, even though doing so may be a violation of company policy.

DNS Filtering for Businesses Protects Off-Site Workers from Wi-Fi Threats

A business that issues mobile devices such as smartphones, tablets or laptops to employees can struggle to secure those devices outside the office. DNS filtering for businesses is one solution that can be used to improve security.

DNS filtering solves the security challenge as it acts as a barrier between the end user’s device and the Internet that blocks web-based threats. When a remote worker uses their laptop to connect the Internet through a web browser, a DNS lookup must be performed. Before the website can be loaded it must be found. That requires the fully qualified domain name (FQDN) – google.com for instance – to be matched with an IP address by a DNS server. Only then can the content be displayed.

With DNS filtering, instead of the IP address being identified and the web browser displaying the content of a web page, before any content is displayed certain checks are performed. The requested site/web page is checked against Real Time Blacklists (RBLs). RBLs contain lists of websites and web pages that host illegal web content, are used for phishing, or host malware or exploit kits.  Content controls are also applied. If content violates corporate policies or a match is found in an RBL, the content will not be downloaded. Instead the user will be directed to a block page where they are informed that access to the web page/site has been blocked.

Any business that fails to implement DNS filtering is taking a significant risk if workers can use company-issued smartphones and laptops to access the Internet and web applications outside the protection of the office environment.

WebTitan Cloud – DNS Filtering for Businesses Made Simple

TitanHQ offers DNS filtering for businesses and MSPs through WebTitan Cloud and WebTitan Cloud for Wi-Fi. WebTitan requires no software downloads or hardware purchases and can be used to protect wired and wireless business networks and remote workers using portable devices on public Wi-Fi hotspots.

WebTitan uses six Real Time Blacklists that are constantly updated with new malicious webpages. Any request to access a web page must pass checks on all six RBLs before the URL can be accessed. These checks are performed with no latency – the speed of accessing web content is unaffected.

Once businesses are signed up they can quickly and easily configure the solution to match their requirements through a web-based interface, through which content controls can be applied. WebTitan uses 53 different categories of web-content and has 10 customizable categories. Those categories include 100% of Alexa’s 1 million most visited websites and more than 500 million websites in 200 languages – which equates to 6 billion web pages.

The solution supports whitelists – for companies that want maximum control – and additional blacklists. It is also easy to set custom controls for different workers and user groups, as well as apply controls at the organization level.

An extensive suite of reporting options keeps businesses 100% up to date on user behavior, including sites that have been visited and attempts by employees to access restricted web content.

In short, WebTitan is an invaluable tool that provides protection from web-based threats and allows businesses to have total control over the content that can be accessed on desktop computers and portable devices, regardless of where the employee is located.

Contact TitanHQ for a Product Demonstration and No-Obligation Free Trial

If you are not yet using DNS filtering to block web-based threats and exercise control over the content your employees can access, contact the TitanHQ team today. TitanHQ’s experienced sales staff will answer your questions, provide details of pricing, and can book you in for a product demonstration.

You can also sign up for a 14-day free trial to evaluate WebTitan in your own environment. The free trial includes full use of the product and experienced sales engineers are on hand to help make sure you get the most out of your free trial.