Web Content Filter for Guest WiFi

A web content filter for guest WiFi is a mechanism through which organizations can protect their WiFi routers and their guests´ devices from online threats. The WiFi filter can also be configured to create a safer browsing environment for guests by blocking access to inappropriate content, and ensure every guest can access the Internet by limiting excessive bandwidth use as required.

Although the abilities of a web content filter for guest WiFi might lead you to believe that a high level of expertise is required to install and manage the mechanism, nothing could be further from the truth. Implementation takes just a couple of minutes and thereafter the web content filter has a very low maintenance overhead. Furthermore, a web content filter for guest WiFi has no upfront costs and is remarkably inexpensive to operate.

The Benefits and Risks of Providing WiFi Access

Everybody wants WiFi access. Customers want to stay connected in shops, bars, and restaurants, and while traveling or staying in hotels. Visitors to shopping malls, hospitals and businesses also want to be able to access the Internet, while children demand it in schools, libraries and educational institutions. Any business or organization that does not offer WiFi access is likely to lose customers to competitors who do.

However, providing unfiltered WiFi access has its risks. There are risks from cybercriminals who want to steal data and identities, risks from Internet users that will browse inappropriate material they would not be able to at home, and the risk that one guest will use up all your bandwidth in order to watch a live-streamed sports event – denying Internet access to all your other guests. These risks could undermine any benefit your company or organization would get from providing WiFi access.

The Commercial Advantage of WiFi Content Filtering

Because of the risks that your customers could fall victim to an online scam, be exposed to inappropriate material or not be able to get on the Internet at all, it can be better to provide no guest WiFi access! News spreads fast about bad service and, if your company or business is supplying an unfiltered WiFi service in which customers´ identities are stolen and children are exposed to pornography, you are likely to lose any commercial advantage of providing a WiFi service for guests.

However, with a web content filter for guest WiFi, these potential scenarios can be avoided. A WiFi filter puts you in control of what your guests can access from their personal mobile devices – protecting guests and their mobile devices from online threats, preventing Internet users and non-Internet users from being exposed to inappropriate content, and ensuring that there is enough bandwidth for every guest to access the Internet at all times.

With WiFi content filtering, not only will you be providing your guests with a higher level of service, you will likely generate additional custom from businesses that continue to provide their customers with an unsafe browsing environment. We expand on each of the main “guest” reasons for implementing WiFi content filtering below; but, while discussing the commercial advantages of WiFi content filtering, this would be a good time to discuss your own online protection.

Protecting Your Router from Malware

It is well chronicled that many routers have security vulnerabilities. These security vulnerabilities can be exploited by hackers, who can change the router´s DNS settings to point at a malicious DNS server. Once the DNS settings have been altered, whenever you type in a URL or click on a link, the malicious DNS server redirects your request to visit a website to wherever the hacker wants you to go. For example, you may end up at a website full of revenue-generating ads or a phishing site that looks exactly the same as the site you were intending to visit.

In addition to messing with your router´s DNS settings, a hacker can install drive-by malware downloads onto your router, use a cross site request forgery attack to take control of your router administration, or launch a worm that will seek out other WiFi routers within range of yours to install botnets that hackers could control remotely. If your WiFi router is within range of somebody else´s already-compromised WiFi router, your wireless network could already be being controlled by a hacker.

A web content filter for guest WiFi prevents these scenarios from happening. When you subscribe to a filtering service, the connection to the service is made through a voluntary change of your router´s DNS settings. Safeguards are in place to prevent any security vulnerabilities from being exploited or the router´s DNS settings from being involuntarily changed (by a hacker). The web content filter for guest WiFi will also prevent your WiFi router from being taken over by a worm.

Protecting Guests´ Devices from Online Threats

A web content filter for guest WiFi protects your guests´ mobile devices from malware and ransomware by preventing Internet users from accessing websites known to harbor online viruses, trojans, adware and other forms of malicious software (“malware”). It can also prevent Internet users from visiting websites that have been constructed with the sole purpose of executing a phishing attack. WiFi content filters do this by inspecting every request to visit a website against a series of pre-configured filters.

The primary protection against malware and ransomware is called a “blacklist”. This is a list of websites known to harbor malware and ransomware. If the requested website appears on the blacklist, the request is denied and the Internet user is displayed a message explaining why they cannot visit the site. For the best protection of guests´ devices from online threats, implement a WiFi filter with “real-time” software updates rather than daily or periodic software updates.

Further protection against malware, ransomware and phishing attacks is provided by URIBL and SURBL filters. These filtering mechanisms prevent Internet users visiting websites that hide their true identity behind a proxy server or behind the whois privacy feature, and websites known to be used for phishing attacks. If an Internet user specifically wants to visit a blocked website, this can be arranged by use of the administrator whitelist or cloud key features (see “Key Elements” below).

Guest WiFi Protection via Category and Keyword Filters

Other filters – typically category filters and keyword filters – enhance guest WiFi protection by preventing access to certain categories of website or preventing Internet users from downloading files types most commonly associated with malware. Being one of the most commonly categories of website visited outside the home environment, unauthorized pharmaceutical websites are often high-jacked by cybercriminals, while .exe, .bat, and .scr file types are often used to mask malicious software.

Category filters are easy to apply. More than 3 million websites are sorted into categories by the WiFi filtering service provider, and all system administrators have to do to block access to each category is check a box in a web-based management portal. Similarly, a simple procedure enables organizations to block Internet users visiting websites containing specific keywords (or file types) – a process that can be used to block access to price comparison websites or competitors´ websites.

The category and keyword filters can be applied to individual users, user groups or universally. For example, if you run a restaurant, you may not want to allow your employees to access social media websites, but it would be a bad idea to block access to Facebook, Twitter and Instagram for your diners. The filters can also be applied by time. So, if you are a venue in which there is a demand from users to access adult-rated online material, you could configure the category filters so they were relaxed after a watershed.

Preventing Exposure to Inappropriate Content

Some Internet users take advantage of a public WiFi service to view content they would not be able to in their home. This may be because they prefer the anonymity of a public WiFi service where their IP address cannot be traced, or – often in the case of minors –  because a web filter has been implemented on their home computer.

If you have customers in your premises openly viewing pornography, extreme images of violence and death, child abuse, and other obscene, illegal or highly inappropriate content, it is likely to deter other customers who object to being exposed to that nature of material. It also speaks volumes about the nature of the customers who frequent your business.

A web content filter for guest WiFi enables business owners to block access to inappropriate content to create a safe browsing environment for every guest. Furthermore, if you have a corporate WiFi service for your employees, blocking access to non-work related activities can eliminate “cyberslacking”, improve productivity, create a better working environment and avoid potential HR issues.

Using a WiFi Filter to Conserve Bandwidth

Providing customers with access to filtered WiFi can help to attract more business, but users must also be able to benefit from reasonable Internet speeds. Many hotspot providers find bandwidth is squeezed during busy periods and Internet speeds become unacceptably slow.

A web content filter for guest WiFi can be used to monitor bandwidth, and restrict access to certain bandwidth-crushing Internet services at times when networks are strained. Blocking video streaming websites during peak hours, for example, can ensure all customers benefit from reasonable Internet speeds.

Bandwidth issues can also be due to malware already present on users´ devices. If you identify an uncharacteristically high use of bandwidth for the activities your customers are engaged in, advising them that their devices might possibly be infected (through no fault of your own) would increase customer confidence in your business and their appreciation of your service.

Where to Use a Web Content Filter for Guest WiFi

Any provider of WiFi for guests can benefit from using a web filter to control what content can be accessed over the wireless network. Some of the main advantages of implementing a web content filter for guest WiFi are detailed below:

WiFi Filter for Bars, Restaurants, Coffee Shops, and Hotels

Any location offering public WiFi access should ideally implement controls to prevent illegal activity and the accessing of obscene or potentially harmful website content. Content should be restricted to family-friendly websites that are suitable for all users. A web content filter for guest WiFi can also be used to conserve bandwidth and monitor Internet activity.

WiFi Filter for Airports, Trains, and Transport Networks

Business travelers require fast Internet access and transport decisions are often made based on Internet availability. It is important to ensure sufficient bandwidth is available for all users. It is therefore advisable to use a web content filter for guest WiFi in order to restrict certain online activities to conserve bandwidth. Content controls should also be applied to protect minors.

WiFi Filter for Shops and Shopping Malls

A web content filter for guest WiFi can be used to track the websites used by customers while shopping, or to restrict access to price comparison websites and those of competitors. Site access reports generated by a guest WiFi web content filter can allow valuable insights to be gained into customer behavior, which can be used when developing future services or marketing campaigns.

WiFi Filter for Hospitals

While content control is important to prevent unsuitable content from being accessed in hospitals, one of the main problems is malware. Cybercriminals are targeting healthcare providers for the data they hold on patients. The U.S Health Insurance Portability and Accountability Act requires hospitals to implement controls to keep all patient data safeguarded. A web content filter for guest WiFi should be applied to reduce the risk of malicious software downloads which could compromise hospital networks.

WiFi Filter for Businesses

Businesses and enterprise web filtering solutions are less of an option and more of a requirement these days. Many man-hours are lost to personal Internet use. By restricting access to sites such as social media networks, shopping portals and video streaming sites, businesses can prevent employees from wasting time and benefit from improved productivity.

WiFi Filter for Schools, Libraries, and Educational Institutions

The primary reason for applying a WiFi filter for schools, libraries and other educational institutions is to prevent adult and other potentially harmful content from being accessed by minors. In the United States, a web content filter is a requirement in schools and libraries in many jurisdictions under the Children’s Internet Protection Act (CIPA).

Key Elements of a Web Content Filtering Solution

Regardless of where you implement a WiFi filter, there are some key elements every web content filtering solution should have. Naturally you want your web content filtering solution to be effective, but you also want to run your business rather than have to police your guests´ online activities. Consequently ease-of-use should be high on your list when considering a web content filtering solution.

Other considerations to take into account include SSL inspection and whitelisting. SSL certificates – the small padlocks that appear on an address bar before a website starting with a //:https prefix – indicate that the content of a website is encrypted and is supposedly safe to use. Unfortunately encrypted websites have their vulnerabilities, and many have been exploited to launch “man-in-the-middle” attacks, often resulting in identity theft and financial loss for the individual.

With SSL inspection, the content of each encrypted website is inspected for malware and breaches of the organization´s acceptable use policy. This can take time and slow Internet speeds for users. Consequently whitelisting the most commonly visited encrypted websites (Google, Yahoo. Facebook, etc.) is also a key element of a web content filtering solution in order to avoid any latency in Internet speeds. Whitelisting can also be used to allow guests access to blocked websites on request.

Implementing Guest WiFi Management

It was mentioned above about policing guests´ online activities, and there is one very important reason why this needs to be done – illegal activity. Some illegal activities are not as bad as others. For example, foreign nationals working remotely on a travel visa and twelve-year-old girls accessing Facebook are technically breaking the law. However, knowingly allowing illegal downloads via your WiFi service could get you in more than a spot of bother.

Copyright infringement is big business for “copyright trolls” – businesses who identify illegal downloaders and then threaten them with court action before allowing them to settle with a fine. If copyrighted material is being illegally downloaded via your WiFi service, it is plausible that a copyright troll would attempt to charge the business owner facilitating the copyright infringement rather than the individual.

Guest WiFi management avoids this scenario. You can use category keywords to block access to illegal download sites and restrict the bandwidth available to the device in order to make any downloads so slow, the illegal downloader does not bother (you can relax this restriction for other users). You should also block access to proxy servers and anonymizer sites to prevent guests circumnavigating your WiFi filter parameters.

Recap: The Ideal Guest WiFi Solution

There has been a lot of topics discussed in this article, so we thought it would be a good idea to provide a recap of what makes an ideal guest WiFi solution. Primarily you want a guest WiFi solution to provide a safe browsing environment for guests, customers, travelers, employees and children.

You want it to provide online protection for both your business and the customers that use your guest WiFi solution – not only when browsing the Internet, but also when reading emails, using Instant Messenger and networking socially.

The solution should be flexible – with easy guest WiFi management – and preferably scalable, so that if the size of your business or organization expands, your WiFi filter will be able to cope with the increased demand without slowing down the Internet speed.

WebTitan Cloud for WiFi

WebTitan Cloud for WiFi can be used to protect all WiFi hotspots and control the content that can be accessed by guests. Being 100% cloud-based, it requires no software downloads and no additional hardware. Our web filter is also quick and easy to implement. In most cases, after a simple change is made to your DNS settings, web filtering takes just minutes to apply.

WebTitan Cloud for WiFi is a scalable web filtering solution that can be applied to WiFi networks of all sizes – from single hotspots to nationwide WiFi networks. There are no limits on the number of hotspots that can be protected, and the web content filter for guest WiFi will allow content to be controlled regardless of the device used to connect to the network.

Some of the main advantages of WebTitan Cloud for WiFi are detailed below:

  • Control website content for all WiFi hotspots via an intuitive central administration panel.
  • Our DNS-based web filter has no impact on Internet speed.
  • Easy configuration with minimal management overhead.
  • Highly granular controls put the hotspot operator in total control of permitted website content.
  • Links to Active Directory allowing access rights to be set for different user groups.
  • Content can be blocked by URL, file type, keywords, website categories, or by website score.
  • Real-time updates for malicious websites, category and keyword filters.
  • Malicious URL blocking and phishing protection enhances online security.
  • Internet access logs are maintained with a full reporting suite and instant alerts.
  • Can be configured to reduce bandwidth waste and abuse.
  • Available in white label format for resellers, and can be hosted within a client’s infrastructure.

Show You Care with a Web Content Filter for Guest WiFi

Contact our sales team today with any questions you may have about filtering your public WiFi service with WebTitan Cloud for WiFi. Our experienced and friendly sales engineers will be able to guide you through the implementation and management of our web content filter for guest WiFi, and even offer you a free trial to test our product for yourself.

If you decide to proceed with our filtering service after your free trial (or your customers demand that you do), several inexpensive subscription options are available for you to choose from. There are no upfront fees to pay. Show your customers you care about their Internet security and safety, and call WebTitan today.

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or email us at info@webtitan.com