For a cyber attack to succeed, the target environment must have some sort of weakness. This could be a missing technical control, misconfiguration, or an employee who falls for a phishing link. To uncover these weaknesses before criminals do, organizations are turning to cyber attack simulations.
A cyber attack simulation is an exercise that mimics real-world attack scenarios to test how people, processes, and technologies respond. While the participants might include everyone in the company, the simulations are overseen by trained cybersecurity professionals under controlled conditions to ensure no actual harm is done.
Attack simulations help validate existing controls, reinforce vigilance, and uncover gaps that are hard to detect with strictly theoretical assessments. They turn planned measures into actionable insights about an organization’s true cyber resilience, preparedness and behaviors.
With the threat landscape increasingly targeting the human element, cyber security simulation training has become one of the most popular forms of attack simulation. Its goal is to use ongoing, hands-on training to increase the overall security awareness among employees.
However, it’s important to note that cyber attack simulations go beyond employee awareness. Let’s go over the most popular forms of attack simulations to find out how they work and why organizations use them.
Phishing and Social Engineering Simulations
According to the FBI, phishing is the most widely reported type of cybercrime today. Billions of phishing emails are sent every day, and many organizations have little to no insight or control over how their employees respond. For that reason, training employees through realistic phishing and social engineering simulations has become an essential component of a proactive and relevant cybersecurity strategy.
Phishing simulations work by sending employees phishing messages that closely resemble the tactics and tone used by actual cybercriminals. At the end, there is usually instant feedback or a micro learning module to reinforce what the user missed and how they can better recognize attempted snares in the future.
Organizations can run different types of phishing simulations depending on user roles and responsibilities. Campaigns can range from broad awareness tests to more targeted spear phishing and business email compromise (BEC) simulations for executives.
Red Team Exercises
When it comes to testing technical controls, red team exercises are the way to go. A red team exercise replicates the tactics, techniques, and procedures (TTPs) of real hacking groups to test how well the organization detects, responds, and recovers from a cyber incident.
Usually, the organization’s security team and incident responders are not told about the exercise, so that the simulation is positioned to yield a clear picture of how their defenses might perform in a real crisis situation.
The goal isn’t to shame defenders, but to uncover hidden gaps in monitoring, alerting, or communication that often slip through until a real attack occurs. The results are then shared with defenders so they can refine their processes, ultimately improving the organization’s security posture.
In some cases, defenders and ethical hackers work together, also known as purple teaming. These are real-time attack simulations where both sides collaborate to test specific defenses, refine detection rules, and improve response protocols.
Penetration Tests
While red team exercises focus on testing the organization’s overall detection and response capabilities, penetration tests (or pen tests) are attack simulations that find and safely exploit specific vulnerabilities in systems, applications, or networks.
It’s one of the most popular forms of attack simulations, with many organizations conducting regular pen tests to ensure the infrastructure they rely on daily is secure and resilient. During a penetration test, authorized cybersecurity experts use a combination of automated tooling and manual techniques to uncover any potential flaw that could be exploited by real attackers.
At the end, the testers deliver a findings report that details every discovered vulnerability, along with recommendations on how to remediate it. The vulnerabilities are categorized by potential impact, so the organization knows which ones to prioritize for remediation.
Breach and Attack Simulations (BAS)
Unlike penetration tests, which rely on human experts, breach and attack simulations (BAS) are fully automated and run continuously. Related to runtime analysis and dynamic application security testing (DAST) for app security, breach simulations are generally delivered via a BAS platform, which safely deploys simulated attack scenarios, often based on adversary tactics from frameworks such as MITRE ATT&CK.
BAS platforms can detect all of the same issues you might expect from a penetration test, including misconfigurations, outdated software, injection vulnerabilities, and more. After each test, the tool generates a detailed report that highlights all of the possible attack surfaces it detected.
The main advantage of this approach is the cost-effectiveness and repeatability. Organizations can detect most of their security issues through automation alone. However, some nuanced flaws or complex attack paths may go undetected as they require human expertise and contextual understanding.
Tabletop Exercises
Some attack simulations do not even require a computer. Tabletop exercises are discussion-based simulations that bring together key stakeholders to walk through how they would respond to a specific incident scenario.
The exercise begins with a realistic hypothetical event, such as a ransomware attack. Facilitators then guide participants through the situation to test their decision-making, communication, and coordination between teams.
Tabletops usually involve people from IT, security, legal, communications, and the executive team, ensuring that every aspect of the organization’s response is evaluated. They particularly serve as a highly effective training tool for leadership teams, helping them understand their roles and how to execute the organization’s incident response plan.
The goal is to build muscle memory among the participants, so when a real breach happens, they know exactly what to do.
DDoS Resilience Simulations
One of the easiest ways attackers can take down an organization’s systems is by overflowing them with traffic. This type of attack is called Distributed Denial of Service (DDoS). During a DDoS attack simulation, testers generate a controlled surge of network traffic, just like you’d expect in a real DDoS attack.
The exercise measures the impact of the traffic on system performance, as well as if existing prevention mechanisms are working. This attack simulation is mainly about testing availability and ensuring the business can stay operational under extreme network stress.
Every organization must have rate limiting and load balancing in place to prevent outages resulting from malicious or accidental traffic spikes. DDoS resilience simulations are a great way to test whether such controls are working effectively.
Ransomware and Malware Simulations
Ransomware and malware simulations are designed to test how well an organization can detect, isolate, and recover from malicious code execution. Unlike penetration tests or BAS, which focus on finding vulnerabilities, these simulations recreate the behavior of actual malware to evaluate detection and response capabilities.
During the simulation, ethical hackers or automated tooling deploy modern, non-destructive malware samples that emulate real ransomware behavior, such as encryption, backup deletion, and lateral movement. Security teams then monitor how their EDR and SIEM systems react.
The main benefit of this attack simulation is testing the effectiveness of endpoint protections, which are essential for detecting and preventing malicious activity before it escalates into a breach.
Conclusion
Cyber attack simulations are the best way to assess, and ultimately improve various aspects of an organization’s cybersecurity posture. From testing technical controls to evaluating how employees react to phishing lures, attack simulations provide invaluable insight into real-world readiness.
