9 min read
How to Notify Employees During a Cyberattack (When Email & Systems Are Down)
When a cyberattack hits, the channels you’d normally use to warn employees — email, Teams, the intranet — are often the first casualties. They may be...
6 min read
Caroline Duncan
:
Oct 23, 2025
(Updated : Apr 20, 2026)

If an active shooter is on the loose, you’ll have a little-to-no warning that they are about to attempt to kill and injure people.
Table of contents
Benefits of an active shooter alert system
Four steps to be prepared for an active shooter in the workplace situation
Send fast active shooter notifications with DeskAlerts
How to use DeskAlerts features in an active shooter situation
Different active shooter needs for different industries
An active shooter is someone who is engaged in killing or attempting to kill others in an area that is either populated or confined. It could be anywhere – a school campus, a busy shopping center, an office building. Often, there is no pattern to the selection of victims. Once there are more than four injured or dead in the situation (excluding the shooter) the active shooter is considered a mass shooter.
Unfortunately, it’s hard to predict when and where an active shooter might strike, but according to the FBI's 2024 Active Shooter Incidents report, active shooter incidents span a wide range of locations — from open spaces and commercial settings to educational environments, government facilities, and houses of worship.
According to the FBI, active shooter incidents across the United States totaled 223 over the five-year period from 2020 to 2024 — a 70% increase compared to the previous five years (2015–2019), underscoring why preparedness remains critical despite a recent year-over-year decline.
According to the CDC, the United States recorded 44,447 gun-related deaths in 2024 — still far above the pre-pandemic baseline of around 40,000 in 2019, despite a recent decline from the peak of over 48,000 in 2022.
With statistics like these, you can’t afford to be complacent. What would you do if an active shooter was targeting your business? Do you have appropriate measures in place to alert your employees quickly to an active shooter in the workplace so that they have the best chance of survival?
According to the Department of Homeland Security, having preparedness plans in place and carrying out drills are some of the best ways you can help your employees survive an actual active shooter situation.
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Investing in an emergency alert system for business that allows you to send active shooter notification messages to your employees could save lives.
An active shooter alert system can work alongside any other strategies that you put in place to protect employees, such as the “Run. Hide. Fight” program recommended by the Department of Homeland Security aimed at encouraging people to get themselves out of an area where an active shooter is quickly to a place where they are able to alert law enforcement to the situation.
Different active shooter alert systems have different features, but you should look for a system that lets you send active shooter alert messages:
Does your company know how to deal with an active shooter?
Being prepared in the event of an active shooter is key to ensuring that your employees have the best possible chance of making it through the situation unscathed.
Identify if there are ways that your staff can easily get to safety – or if there is somewhere that they can safely shelter in place if an active shooter situation develops. Show images of your evacuation routes in prominent locations throughout your facilities.
Create an Emergency Action Plan that your staff can enact in the event of an active shooter situation. This should set out the relevant procedures your staff should follow if there is an active shooter.
Along with the Emergency Action Plan, you should carry out various training exercises so that employees will know how to respond in a real active shooter situation. This should include:
When you have an active shooter situation unfolding, there can be little to no time to prepare emergency notifications from scratch to send to employees. Having pre-prepared templates will let you quickly send information to everyone when you need to.
DeskAlerts has designed a solution to help businesses to respond quickly to a crisis such as an active shooter, enabling them to communicate with employees quickly in under a minute so that they can take measures to be safe.

DeskAlerts is an internal communications software solution that works by sending notifications to employees’ desktop screens in a way that can’t be skipped, minimized or ignored. Messages are displayed even if the employees’ computer is locked or on standby or screensaver modes. It is not only an active shooter alert app. It can also be used to alert employees in a variety of other crisis situations.
Generally, messages are sent from an interface that is accessed through a web browser and messages are displayed in the form of pop-up notifications on employee screens. Employees who are on the road or out of the office can still receive messages if they download a Google or Apple app for their smartphones and tablets, and receive the messages in the form of a push notification.
But when a situation develops so quickly that there isn’t time to log in and compose a message to warn people about danger, or if you aren’t at your desk when an emergency unfolds, there is a feature called a “panic button” which can be accessed either as a shortcut on an administrator’s desktop or via an app on a smartphone or tablet.
The panic button message created in advance gives your employees notice that there is a dangerous situation unfolding and they need to act quickly to get to safety. Think of it as being like an active shooter alarm.
An administrator can quickly and easily create a panic button shortcut by composing a customized emergency message template, downloading it to their computer and then using it to send notifications in a split second.
You can communicate with the entire workforce at the touch of a button, reaching as many people as possible inside a minute.
DeskAlerts has a range of tools, channels and other features to help you to inform and keep employees safe in an emergency, including an active shooter situation. This includes:
Different industries have different structures and different priorities. What one industry needs in terms of a response plan to an active shooter isn’t necessarily going to be the same for other industries.
Common industry needs are:
Mass notification systems are used by companies and emergency services to let people know about dangerous situations that could impact them. An active shooter situation is just one of the ways this can be used, and it can include companies sending a text alert via SMS to mobile phones on a contact list that they maintain, alerting them to the situation. Emergency services in many countries use a similar system, but instead of sending to a contact list, they are able to send to all cell phones in the range of specific cell towers.
You can alert everyone in your office to an active shooter situation by using an active shooter alert system. Different alert systems have different features, but in general, they will quickly send messages to your colleagues’ mobile phones, computer screens and other digital screens in the office to provide critical information about the situation as well as instructions about what to do to keep safe. Communications channels used may include SMS messages, mobile app notifications, pop-up alerts on computer screens, screensavers and digital signage.
Send urgent notifications to PCs, phones, tablets, digital signage, and other corporate devices.
Display high-visibility alerts directly on employees' screens to help ensure critical messages are seen and acknowledged. Reach employees even when computers are locked, in screensaver mode, or idle.

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