Breach Simulations: What Businesses Don’t See Until It’s Too Late

Your Perimeter is Already Compromised

The Problem: Focusing on the Front Door

Most security spending targets the edge. Firewalls. Web Application Firewalls. Endpoint Protection. This is where most organizations feel secure. They focus on the front door.

Attackers rarely use the front door anymore. They exploit the supply chain partner. They use the forgotten cloud resource. They pivot through an unpatched legacy system in the network's quiet corner. The attack surface is not a single line. It is a sprawling, interconnected web of infrastructure, people, and code.

We break what others miss_. This is the reality of modern defense. Security teams rely on tooling that flags known issues. They miss the complex, custom attack chains. They miss the lateral movement. They miss the post-exploitation steps.

Attackers See the Full Kill Chain

A true attacker’s goal is not just to get in. It is to stay in, escalate privileges, and exfiltrate data. Most current "simulations" stop at the first successful exploit. They miss the real impact.

Attackers exploit the weak links:

  • Initial Access: Phishing a developer, exploiting a single vulnerability in a partner API.
  • Establish Foothold: Deploying custom shell code or a beacon. Blending in with normal traffic.
  • Privilege Escalation: Exploiting an internal misconfiguration like an insecure service account or a flawed IAM policy.
  • Lateral Movement: Moving from one compromised host to another. Targeting Active Directory or similar identity systems.
  • Exfiltration: Identifying critical data, compressing it, and sending it out, often via DNS tunneling or other covert channels.

Your current security tooling, without real testing, cannot see this chain. It sees a single alert, not the full story. The gap between what your tools report and what a hacker can do is where breaches happen. Breach simulations need to cover the entire chain, not just the start.

Exploitation & Impact

From Code Flaw to Full Business Disruption

A breach is not a technical event. It is a business failure. The path from a small technical flaw to major financial loss is predictable. Organizations that only scan for vulnerabilities are missing the exploitability layer.

Consider a common scenario: a misconfigured cloud storage bucket.

  1. Technical Flaw: An S3 bucket is configured with a blanket public read/write policy, intended for a short development cycle but forgotten.
  2. Attacker Action: An attacker uses open-source tools to discover public buckets by scanning the organization's domain structure. They identify the target.
  3. Initial Exploitation: The attacker uploads a malicious file. They check the public policy and find they can read and write content.
  4. Impact Escalation (The Missed Step): The attacker finds configuration files inside the bucket. These files contain API keys or internal service credentials for a different part of the infrastructure, perhaps an internal monitoring service. This is the pivot.
  5. Lateral Movement: Using the harvested keys, the attacker authenticates to the internal service. They now have an authenticated session inside the production network. They move laterally to a database server or an internal code repository.
  6. Full Impact: The attacker extracts millions of customer records or deploys ransomware to the core business systems.

The security team was only scanning for RCE on web servers. They missed the cloud misconfiguration, which became the entry point. They also missed the post-exploitation lateral movement. This failure to test the whole path is why simple scans fail.

Breach simulations must test the pivots. They must follow the money, not the CVE score.

Defense & Fix Path

Fixing the Blind Spot: Real-World Testing

Security cannot be a theoretical exercise. It needs to be a continuous cycle of breaking and fixing. The goal of a proper breach simulation is not a score. It is a prioritized list of actions to make a real attack impossible.

This requires shifting from a vulnerability focus to an exploitability focus.

Concrete Actions for True Defense

  1. Shift Left, Test Right: Integrate security testing into the development lifecycle. This is the role of Pentesters-as-a-Service. Every major feature release and infrastructure change must be tested by human experts, not just automated tools. Hack every build before attackers do. Get started_
  2. Adopt Attack Emulation: Move beyond simple penetration testing. Use techniques like MITRE ATT&CK TTPs to emulate real-world threat actors. Test your security controls' ability to detect the behavior of an attacker—the lateral movement, the credential theft, the covert communication.
  3. Prioritize the Full Chain Fix: Do not just patch the initial vulnerability. After a simulation, fix the entire chain:
    • Initial Vector: Patch the cloud policy.
    • Key Storage: Revoke and securely rotate the leaked keys. Implement a secrets management vault.
    • Lateral Defense: Implement and test micro-segmentation. Use Identity Access Management (IAM) to enforce the principle of least privilege.
  4. Continuous Validation: Your defense degrades over time. New code is pushed. New assets come online. This requires a 24/7 approach to defense validation. This is where a continuous security posture management platform comes in. Always scanning. Always watching. Launch your attack_

We build defenses the same way attackers build exploits. Built to breach. Designed to protect.

Why It Matters: Security is a Business Risk

Stop Managing Alerts, Start Managing Risk

The CISO’s job is not to stop all vulnerabilities. It is to manage business risk. A simple vulnerability is low risk until an attacker can chain it with a misconfiguration to steal data. That is high risk.

Traditional security focuses on the volume of alerts. Effective security focuses on the exploitability path. If an attacker can get from the perimeter to the critical database in five steps, that is the risk to fix first. It does not matter how many low-severity flaws exist in non-critical systems.

Your board and your shareholders care about one number: the cost of the breach. Breach simulations give you that number before the breach happens. They translate technical flaws into real-world financial risk. This is the language of business. This is how you secure budget.

Security is not about perfect protection. It is about resilient defense. It is about understanding the attacker’s next move better than they do.

Thiery Ketz

Thiery Ketz

Co-Founder

Have more questions or just curious about future possibilities? Feel free to connect with me on LinkedIn.

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FAQ
A vulnerability scan is an automated tool that checks for known flaws, like outdated software or missing patches. A breach simulation is a goal-oriented exercise, often manual and using real hacker TTPs, to test the entire attack chain from external access to internal data exfiltration. The scan looks for technical flaws. The simulation tests the business impact of those flaws being exploited together.