Kahoot Bots Explained: How They Work, Risks, Detection & How to Stop Them
Kahoot has become one of the most popular platforms for interactive quizzes, classroom assessments, training sessions, and game-based learning. Its live format allows students or participants to join a quiz using a temporary game PIN, making it possible for an entire class to participate in the same activity in real time. However, this simple joining mechanism can also create an opportunity for unwanted automated participants, commonly referred to as Kahoot bots, to enter a game.
A Kahoot bot is an automated program or client that attempts to interact with a Kahoot game without behaving like a normal human participant. Depending on the situation, multiple automated participants may appear in a game lobby, creating confusion for the host and legitimate players. Kahoot itself has introduced security features specifically intended to make automated or unwanted participation more difficult, including its 2-Step Join feature.
This guide explains what Kahoot bots are, how bot-based attacks work at a conceptual level, why they are a problem for teachers and organisations, how Kahoot attempts to detect and prevent them, and what hosts can do when unwanted players appear in a live game.
What Is a Kahoot Bot?
A Kahoot bot is an automated software client designed to interact with a Kahoot game programmatically rather than through normal human interaction. Instead of a student manually opening Kahoot, entering a game PIN, choosing a nickname, and participating in the quiz, an automated client can attempt to perform some of these actions automatically.
The term “bot” is short for robot, but in cybersecurity and software engineering it generally refers to a program that performs tasks automatically. Bots are not inherently malicious. Search engines, customer-service systems, monitoring applications, and many other legitimate services use automated software. The problem occurs when automation is used to interfere with another person’s service or activity.
In the context of Kahoot, the problem becomes particularly noticeable when a large number of unexpected participants appear in the game lobby. Teachers may suddenly see unfamiliar or inappropriate nicknames, duplicate-looking participants, or a participant count that is much higher than the number of students actually present.
Kahoot’s current documentation specifically identifies bot attacks and “fake participants” as situations where its 2-Step Join feature can be useful.
How Does a Kahoot Game Work?
To understand why bots can become a problem, it helps to understand how a normal Kahoot session works.
When a host starts a live Kahoot game, the platform creates a temporary game session and displays a game PIN. Participants can normally join through Kahoot’s website or application by entering the PIN. Kahoot also supports joining through direct links and QR codes.
The basic process looks like this:
Host starts a game → Kahoot creates a session → Game PIN is displayed → Participants join → Participants answer questions → Results are displayed
The game PIN therefore acts as an important part of the joining process. It is not a permanent password for a particular Kahoot; it is associated with a specific game session. Kahoot’s current documentation describes live game PINs as temporary session codes.
This temporary-session model makes it convenient for classrooms because students generally do not need to create an account simply to participate in a live game. At the same time, if the joining information becomes publicly available, unwanted participants may attempt to enter the session.
How Do Kahoot Bots Work?
At a high level, a bot attack involves software attempting to automate actions that would normally be performed by a human participant.
A simplified conceptual model looks like this:
Game PIN → Automated client → Connection attempt → Participant session
A malicious or unwanted bot service may attempt to automate the creation of multiple participant sessions. Instead of one person manually joining once, automated software may attempt many connections.
The underlying technology can involve ordinary web requests, automated browser behaviour, programmatic communication with online services, and other forms of client automation. Modern web applications frequently use real-time communication mechanisms to exchange information between servers and connected clients.
However, the exact implementation of a Kahoot bot can vary considerably. Bot developers may also change their techniques when platforms introduce new defences.
For this reason, there is no single technical definition of a “Kahoot bot”. The term generally describes automated software attempting to behave as one or more participants in a Kahoot session.
It is important to distinguish between understanding this technology and using it to disrupt someone else’s game. Automated access intended to interfere with Kahoot’s services is not the same thing as legitimate software testing conducted with authorisation.
Why Are Kahoot Bots a Problem?
The most obvious problem is disruption. Imagine a teacher preparing a quiz for 30 students. The teacher shares the game PIN and students begin joining. Suddenly, dozens of unfamiliar participants appear in the lobby. The teacher now has to determine which participants are legitimate and which are unwanted.
This can interrupt the lesson before the quiz even begins.
Bot attacks can also create problems with inappropriate usernames. Since participant names are displayed in the game environment, unwanted automated names may distract students or introduce inappropriate content.
Another problem is psychological. A teacher may initially believe that the entire class has joined successfully, only to discover that many of the participants are automated. This can reduce confidence in the activity and waste valuable classroom time.
There is also a broader security lesson here. Any system that allows users to join rapidly using publicly shared information needs to consider the possibility of automated abuse.
What Does a Kahoot Bot Attack Look Like?
A typical bot-related incident may begin normally. The teacher starts a live game and displays the game PIN. Students begin joining, and the teacher waits for everyone to appear.
Then the participant count suddenly increases.
For example, a teacher expecting 25 students might see 40, 60, or even more participants. Some names may look random, duplicated, unusual, or unrelated to the students in the classroom.
A common real-world description of this problem comes from teachers who have reported unexpectedly large numbers of participants appearing in a Kahoot session. Community discussions have documented cases where teachers suspected that a student had introduced multiple automated participants into a game.
However, an unusually large participant count does not automatically prove that bots are responsible. A host should first check whether the game PIN was shared outside the intended audience and whether students accidentally joined more than once.
How Can You Tell If Kahoot Bots Are Joining?
There is no single visual sign that proves a participant is a bot.
Instead, hosts should look for a combination of unusual behaviours.
One indication is a sudden and unexplained increase in participants. If a class contains 30 students and the lobby rapidly fills with many additional names, the host should investigate.
Another indication is a collection of unfamiliar or inappropriate nicknames. A few unusual names can occur naturally, but a large number of strange names appearing within a very short period can be suspicious.
Timing can also provide useful information. If many participants appear almost simultaneously, particularly when the host has not announced the game PIN publicly, automated activity becomes one possible explanation.
However, teachers should avoid accusing a particular student solely on the basis of suspicious participant names. A bot attack may originate from someone who obtained the game PIN through another channel, and the participant list alone generally does not establish who initiated the activity.
Can Kahoot Detect Bots?
Kahoot has implemented mechanisms designed to reduce automated and unwanted participation.
One of the most important current features is 2-Step Join. According to Kahoot’s documentation, this feature adds an additional verification step after the participant enters the game PIN. The participant must interact with a pattern displayed on the host’s screen. Kahoot says this makes it harder for unwanted players and most bots to access a game.
Kahoot also explains that no single setting can guarantee a completely bot-free experience. Its current guidance recommends combining multiple protective measures rather than relying on one feature.
This is an important point for teachers: bot protection is not a single switch; it is a combination of access control, monitoring, and appropriate game settings.
What Is Kahoot 2-Step Join?
2-Step Join is a security feature designed to add an additional verification stage to the normal joining process.
Under normal circumstances, a participant can enter the game PIN and proceed with joining. When 2-Step Join is enabled, the participant must complete an additional pattern-based step displayed on the host’s screen.
Kahoot’s current implementation uses a grid of tiles. Participants must select the correct four-tile pattern shown on the host’s screen. The pattern changes periodically, meaning that simply knowing the game PIN is not sufficient to complete the joining process.
This provides an important security advantage in physical classrooms because legitimate students can see the teacher’s display while an external automated system may not have access to the changing visual information.
Kahoot recommends using 2-Step Join when a host suspects that a game PIN has been shared or when the host has experienced bot attacks or fake participants.
How to Enable 2-Step Join
The current Kahoot interface allows hosts to enable 2-Step Join from the live game settings.
After opening a Kahoot and selecting Host Live, the host can reach the game lobby and open the game settings. The 2-Step Join option can then be enabled from the available settings. Kahoot’s current instructions place this option in the advanced settings area of the live game.
Once enabled, participants continue to use the normal joining process, but they must also complete the additional pattern displayed on the host screen.
This means that teachers do not need to change the way they distribute the basic game PIN. Instead, the platform adds another verification step to the joining process.
How to Stop Kahoot Bots
The best approach is to combine several preventive measures.
Use 2-Step Join.
The first and most important step is to enable 2-Step Join when you suspect bot activity or when your classroom requires stronger protection.
Kahoot specifically recommends this feature for situations involving bot attacks and fake participants.
Do Not Publicly Share the Game PIN
A game PIN should normally be shared only with the intended participants.
Kahoot’s current live-game guidance specifically warns hosts not to share game PINs publicly on social media because this can result in unwanted participants or bots joining the session.
For a classroom, this means that the teacher should share the PIN through the classroom display or an appropriate private communication channel rather than posting an active game PIN on a public social media page.
Remove Suspicious Participants
If unwanted participants appear in the lobby, the host can remove suspicious participants before starting the game.
Kahoot’s current 2-Step Join guidance recommends removing suspicious participants and locking game joining once the expected participants have entered.
Lock Game Joining
Once all legitimate participants have joined, locking the game can prevent additional participants from entering.
This is particularly useful because a game PIN may have already been shared with someone outside the intended audience.
Kahoot explains that locking game joining prevents additional participants from entering even if they have the necessary joining information.
Keep the Game PIN Private
The safest approach is to treat an active game PIN as temporary access information.
Teachers should avoid placing active game PINs in public posts, public websites, open social media groups, or other locations where unintended people can easily obtain them.
Once the live session ends, the PIN is no longer a permanent access credential for that particular live game. Kahoot describes live PINs as temporary and tied to individual sessions.
What Should You Do If Bots Have Already Joined?
If you notice suspicious participants before the quiz begins, do not immediately start the game.
First, remove the suspicious participants from the lobby.
Next, enable 2-Step Join if it is available for your live game. Kahoot recommends combining 2-Step Join with the removal of suspicious participants and locking game joining after legitimate players have entered.
If the session continues to experience problems, restarting the session can also be a practical option. A new live session generates a new game PIN, reducing the usefulness of the old session information.
The goal should be to restore a controlled environment rather than trying to identify or retaliate against the person responsible.
Are Kahoot Bots Allowed?
It is important to distinguish between harmless automation used for legitimate software testing and automation used to interfere with a service.
Kahoot’s Acceptable Use Policy states that users may not access its services through unauthorised automated, unethical, or unconventional means. It also prohibits activity that disrupts or interferes with Kahoot’s services and associated infrastructure.
Therefore, using automated clients to flood or disrupt someone else’s live Kahoot session is inconsistent with Kahoot’s stated acceptable-use requirements.
This is also why educational discussions about Kahoot bots should focus on understanding the technology, recognising attacks, and protecting legitimate users rather than encouraging disruption.
Kahoot Bots vs. Legitimate Automated Testing
Automation itself is not inherently bad.
Software developers and security researchers routinely use automated clients to test systems under controlled conditions. The critical difference is authorisation and purpose.
A legitimate security test generally occurs in an environment where the tester has permission to conduct the test and where the activity is designed to identify weaknesses without causing unnecessary disruption.
By contrast, launching large numbers of automated participants into another person’s live classroom session without permission can interfere with the service and disrupt learning.
This distinction is useful because the same underlying technical concepts—automation, requests, clients, sessions, and concurrency—can be used for either legitimate testing or abusive activity.
Kahoot Bots and AI Bots: What’s the Difference?
The traditional idea of a Kahoot bot is relatively simple: automate participation.
An AI-based bot could potentially go further by interpreting information, making decisions, generating responses, or adapting its behaviour dynamically.
This creates a broader cybersecurity challenge for online educational platforms. As artificial intelligence becomes increasingly capable of interacting with websites and applications, distinguishing between human users and automated agents can become more complicated.
For educational platforms, this means that future anti-bot systems may need to consider not only the number of connections being made but also behavioural patterns, interaction timing, navigation behaviour, and other signals.
The important point is that AI does not automatically make a bot more dangerous. The impact depends on what the automated system is designed to do and whether it is being used with authorisation.
Why Bot Protection Matters in Education
Bot attacks may appear to be simple classroom pranks, but they illustrate a broader issue in educational technology.
Modern learning platforms depend heavily on online identity, real-time communication, and controlled access. When automated systems can interfere with those processes, teachers lose time and students can lose confidence in the learning activity.
Security, therefore, needs to be considered even for seemingly simple educational tools.
Kahoot’s own safety guidance recommends measures such as 2-Step Join and locking the game when unwanted participants are a concern.
For teachers, the practical lesson is straightforward: interactive learning should remain interactive for the intended participants—not automated programmes.
A Simple Kahoot Bot Prevention Checklist
Before starting a live Kahoot, check that the game PIN is being shared only with the intended participants.
If your classroom has previously experienced unwanted participants, enable 2-Step Join before students begin joining.
Watch the lobby while participants enter. If suspicious names appear, remove them before starting.
Once all expected participants have joined, consider locking game joining.
Finally, avoid publishing active game PINs on public websites or social media platforms.
These simple steps can significantly reduce the opportunity for unwanted participants to interfere with a live session. Kahoot’s current guidance similarly recommends combining 2-Step Join with participant removal and locking the game.
Frequently Asked Questions About Kahoot Bots
What is a Kahoot bot?
A Kahoot bot is an automated software client that attempts to interact with a Kahoot game as a participant. Bot activity can become problematic when automated participants enter a game without authorisation and disrupt the session.
How do Kahoot bots work?
At a high level, Kahoot bots attempt to automate actions normally performed by human participants, such as joining a live game. The exact technology can vary between different bot implementations.
Can Kahoot detect bots?
Kahoot has implemented security mechanisms designed to make bot participation more difficult. Its current 2-Step Join feature is specifically intended to make it harder for unwanted players and most known bot services to access a live game.
How do I stop Kahoot bots?
Enable 2-Step Join, keep your game PIN private, remove suspicious participants, and lock game joining after legitimate participants have entered. Kahoot recommends combining these measures rather than relying on one protection mechanism.
Can someone join my Kahoot without the PIN?
Kahoot currently supports several joining methods, including game PINs, direct join links, and QR codes. However, additional security requirements configured by the host, such as 2-Step Join, still apply when those alternative joining methods are used.
Why are random players joining my Kahoot?
One possibility is that the game PIN or joining information has been shared outside the intended audience. Another possibility is automated activity. Kahoot recommends keeping game PINs private and using additional security features when unwanted participants appear.
Does 2-Step Join completely stop bots?
No security feature can guarantee that every automated system will be blocked. Kahoot explicitly states that 2-Step Join does not guarantee a completely bot-free experience, although it is designed to block most known bot services and make unwanted participation more difficult.
Is using a Kahoot bot allowed?
Using automation to disrupt another person’s Kahoot session is inconsistent with Kahoot’s Acceptable Use Policy, which prohibits unauthorised automated access and activity that disrupts its services.
Final Thoughts
Kahoot bots are an interesting example of how automation can affect educational technology. The same concepts that make modern online platforms convenient—temporary sessions, quick joining, real-time communication, and easy access—can also create opportunities for automated abuse.
The good news for teachers is that there are practical ways to reduce the risk. Keeping game PINs private, monitoring participants, using 2-Step Join, removing suspicious players, and locking the game after legitimate participants have joined can provide a much more controlled environment.
Most importantly, a Kahoot bot should not simply be viewed as a technical curiosity or a prank. It is an example of a broader cybersecurity problem: how can an online system distinguish legitimate human activity from unwanted automated behaviour?
As educational platforms become increasingly connected and AI-powered automation becomes more sophisticated, understanding these questions will become increasingly important.
For teachers, the simplest rule remains the most useful one: protect the game before the disruption starts.