Active Defense and Offensive Security: The Two Sides of a Proactive Cyber Defense Program
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Offensive security and active defense may appear at first glance as contradictory cybersecurity solutions, but when paired, they create complementary and robust protective solutions.
Let's take a quick look at what each solution offers before we go into the details. Offensive security involves attempting to identify flaws in an organization before a threat actor has a chance to exploit them. Meanwhile, an active defense seeks to create a hostile environment for attackers, making it difficult for them to operate and increasing the chances of detection and disruption. Together, these strategies ensure a more resilient and responsive security infrastructure capable of withstanding the evolving landscape of cyber threats.
So, the two are similar, but not really.
Active defense goes beyond traditional defensive measures like firewalls and intrusion detection systems. It involves proactively detecting, disrupting, and countering adversaries while gathering intelligence about their tactics, techniques, and procedures (TTPs). Active Defenses can take many forms, such as honeypots, fake user accounts, or an Excel sheet containing fake credit card information. Let's discuss some of these methods.
Active defense seeks to create a hostile environment for attackers, making it difficult for them to operate and increasing the chances of detection and disruption. At the same time, active defenders place the cyber equivalent of a trip wire in the system, one that encourages an attacker to touch, thus triggering an alert for the security team.
Deception is another tool for an active defense. The simplest example of a deception method is creating a user account with no assigned roles or privileges. This user account cannot be used for authentication by a threat actor. Still, the moment they try to authenticate, the action is logged, and the SOC can be notified that unauthorized activity is occurring. This method is much more powerful than a typical user authentication failure since no one has been authorized to use this account. So, 100% of the login activities are true positive threats.
The strategy involves proactively engaging with potential security threats by employing ethical hacking, penetration testing, and red team exercises to uncover system vulnerabilities ahead of malicious actors. Proactive: Focuses on identifying vulnerabilities before attackers exploit them. In short, offensive security measures mimic real-world attack scenarios to assess system resilience, are risk-based, prioritized vulnerabilities based on potential impact, and should be part of a continuous process of testing, learning, and improvement.
These actions are accomplished with:
While offensive security and active defense may seem like opposing forces, they are actually highly complementary. Offensive security provides valuable intelligence about an organization's vulnerabilities, which can inform active defense strategies. Conversely, active defense can help identify new attack vectors and techniques that can be incorporated into future offensive security assessments.
Organizations can significantly bolster their security posture by merging offensive and active defense strategies. This integrated approach offers several key advantages: enhanced threat detection, improved incident response, deeper threat intelligence, and a stronger security posture.
A deep understanding of attacker tactics gained through offensive operations can be leveraged to develop more sophisticated detection mechanisms, helping to identify threats earlier in the attack lifecycle.
Active defense measures can effectively contain attacks and mitigate their impact, enabling organizations to respond to incidents more swiftly and efficiently. Combining offensive and defensive perspectives provides a comprehensive view of the threat landscape, allowing organizations to anticipate emerging threats and adapt their defenses accordingly.
A proactive approach encompassing prevention, detection, and response capabilities creates a robust security framework, significantly reducing the overall risk of successful attacks.
Implementing offensive security and active defense requires specialized skills, resources, and a strong security culture. Organizations must carefully balance the risks associated with offensive security activities while ensuring that active defense measures do not violate legal or ethical boundaries.
Key challenges:
Offensive security and active defense are essential components of a robust cybersecurity strategy. By working together, these approaches can help organizations stay ahead of the ever-evolving threat landscape and protect their critical assets. Organizations must invest in skilled personnel to achieve maximum effectiveness, establish clear processes and procedures, and foster a strong security culture.
David Broggy is Senior Solutions Architect, Implementation Services at Trustwave with over 21 years of experience. He holds multiple security certifications and won Microsoft's Most Valuable Professional (MVP) Award for Azure Security. Follow David on LinkedIn.
Trustwave is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats. Our comprehensive offensive and defensive cybersecurity portfolio detects what others cannot, responds with greater speed and effectiveness, optimizes client investment, and improves security resilience. Learn more about us.
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