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Adaptive Display's Digital Signage Blog

Wireless Security Solutions for Digital Signage

Posted by Chad Bogan on Wed, Dec 17, 2014

Wireless Security Solutions for Digital Signage

Over the years, there had been a significant increase in both interior and exterior LED signage being used by  businesses, organizations, communities and government entities

Because of this growth, digital sign manufacturers and distributors need to ensure that LED signages are not only effective, but more importantly, secured and consistent with regulations and local laws. Digital signage isn't free from security threats in today's hotspots.

Nowadays, the most commonly used form is Wireless (Wi-Fi) Communications. This article helps you gain information and a basic understanding about the three basic concepts:

  1. Wireless Security
  2. Software Security
  3. Network Security

Wireless Basics

Wireless communication for LED signs usually requires two communication equipments. One equipment connects and stays at the sign itself, while the other unit resides directly at the users’ network or computer.

Wireless radios are paired over the network. These radios communicate and create a "wireless cable" from the user's computer to the digital sign.  This allows users to manage the sign in real-time without the need for a cable.

Its advantage includes quick and low infrastructure cost for implementation.  It also make use of different frequencies and security methods.


Wireless Frequencies

900 MHz: For several years, most traffic devices and networks have used this frequency in wireless communications between devices. But it only provides a smaller bandwidth that makes most LED signs use a different bandwidth.


2.4 GHz: This is the most common frequency being used today. Home networks "Wi-Fi" connections have this frequency. Most laptops also have a 2.4 GHz: Wi-Fi card in it.

5 GHz: This frequency is already gaining popularity. It combines the speed of 2.4 GHz with the security of 900 MHz, making it one of the best frequency type to use.


Wireless Security


Wireless Security is a very important aspect to stay secure and keep your LED sign protected from any attacks. It is good that Wi-Fi security has greatly improved over the years.

Here are important things for strengthening your signage's security levels:


Factory Settings:

Manufacturer's should change factory settings of wireless devices to its own secure settings. Only the end user or sign distributor have the right to know the security settings. As digital sign owner, you can take extra precaution by changing it to your own security settings (just make sure to document the changes).

Quality Devices:

Using high-quality and well-tested sign devices ensures greater security than their counterparts. Make sure to deal only with manufacturers offering well-established digital displays.

WPA / WEP Encryption:

Most Wi-Fi devices supports some form of encryption. Use the strongest form of encryption that works for your digital signage network.


Software Security

A secured and well-designed LED sign system includes direct and indirect software security that serves as additional firewall. This helps prevent attacks from happening.

The best ways to stay secure is to have the right tools and use caution to prevent spyware and malware from infecting your computer and LED displays. It is a must to have an up-to-date firewall, an anti-spyware software and an anti-virus software.

Secured Installations: 

Avoid using any kind of generic or unsecured software. Not only will you encounter poor performance, its lack of security measure is a huge problem as well. Ensure that all installations have an "Activation Code" or any other security system in it.

Not For Public Use:

Software that are available for public download are not recommended. Only the sign software dealers and end-users should have the right to use their own personal software. It should not be made available for public use.

Cloud Based Options:

Cloud-based sign content management is a new content that ensures safety of all your content. Being in an enterprise level security and off-site hosting makes it harder for anyone to gain access and cause damage to the digital sign.


Network Security

Network security protects the usability, reliability, integrity, and safety of your network and data. Making use of a secured network stops threats from entering your digital signage.

It helps to understand that a single solution is not enough to protect your digital sign from a variety of threats. You need multiple security layers for your hardware and software.

Secured Hardware:

Make sure that your computer has its own password security to prevent unauthorized access. There should be restricted access as well.

Physical Access:

It is better to install the sign software on computers you have direct control over. For extra security, have a dedicated laptop or computer on its own network that is connected directly to the sign.

Having an LED sign is an important investment. Make sure that its security and its hardware doesn't fail you. Securing wireless communications for LED signs through quality hardware devices and unique wireless setting lets you avoid that "Zombie Warning" situation.

At Adaptive, we provide the solutions needed to protect our digital signage from today's varied threat landscape. Our reliable, secured and flexible LED sign solutions are reflected on our software and hardware components. Talk to our well-versed sign experts at 800-558-7022 to help you choose the best and most-secured digital signage compliant to your needs.


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