Right, let’s talk about something that’s often swept under the rug in cybersecurity: proving the value of our investments. We, as experts, know that SIEM and SOAR are crucial components in safeguarding our networks. But justifying the expense, especially to stakeholders who might not speak ‘cybersecurity’, requires a language they understand – return on investment (ROI). Having just wrestled with this myself on a major project, I wanted to share my approach. Think of this as a guide to translating security jargon into boardroom-friendly numbers.
The Landscape: Why SIEM/SOAR Integration Matters
Before diving into ROI, let’s level-set on why integration is paramount. We’re dealing with increasingly sophisticated and high-volume attacks. A standalone SIEM provides valuable insights, but without automated orchestration, response is often manual, slow, and inconsistent. SOAR platforms excel at automating repetitive tasks and incident response, but they need the SIEM to provide the raw intelligence and context to act upon.
Think of it like this: the SIEM is the vigilant watchman, constantly scanning for trouble. The SOAR is the well-trained security team, ready to spring into action based on the watchman’s alerts, following pre-defined protocols and procedures. Integration is the clear communication line between them, ensuring rapid and effective response.
Defining Your Measurement Metrics
Here’s where we get concrete. We need to establish clear metrics before implementing the integration to have a baseline for comparison. Key metrics include:
- Mean Time to Detect (MTTD): How long does it take to identify a malicious activity after it occurs? A lower MTTD means faster identification of breaches, limiting their impact.
- Mean Time to Respond (MTTR): Once an incident is detected, how long does it take to contain and remediate it? Automation plays a crucial role in reducing MTTR, preventing further damage.
- Alert Fatigue Reduction: A common problem in security operations is being overwhelmed by a high volume of alerts, many of which are false positives. SIEM/SOAR integration can improve alert accuracy through automated correlation and enrichment, reducing the burden on analysts. Measure this by tracking the number of alerts requiring manual investigation before and after integration.
- Cost Savings: This is the big one. Quantify cost savings by considering reduced analyst time on repetitive tasks, faster incident resolution, and avoided losses from successful attacks. You can also include the cost of any breaches before the system was in place and how much they cost the business.
Building Automated Threat Detection and Response Workflows
The core of SIEM/SOAR integration is the development of automated workflows, often called playbooks. Start small and iterate. Here’s a practical example:
- SIEM Alert: The SIEM detects suspicious activity, such as multiple failed login attempts from a single IP address.
- SOAR Trigger: The SIEM forwards the alert to the SOAR platform.
- Automated Enrichment: The SOAR platform automatically enriches the alert data with threat intelligence feeds, geolocation data, and information about the affected user and system.
- Automated Containment: Based on the enriched data, the SOAR platform automatically blocks the offending IP address at the firewall and disables the user account.
- Analyst Notification: The SOAR platform notifies a security analyst of the incident, providing them with all the relevant information for further investigation.
To prove this approach is working, measure the total time it would take to complete this process manually vs. how long it now takes with the automated workflow. Then work out how much it costs the company for the manual intervention.
Quantifying the Benefits
Now, let’s translate these metrics into monetary value. Here are some strategies:
- MTTD/MTTR Reduction: Estimate the potential financial impact of a data breach (e.g., regulatory fines, legal fees, reputational damage). Calculate how much the reduction in MTTD/MTTR mitigates that risk. For example, if a breach is estimated to cost £1 million, and the integration reduces MTTR by 50%, you can attribute a £500,000 risk reduction to the project.
- Alert Fatigue Reduction: Calculate the cost of analyst time spent on investigating false positives. Multiply the hourly rate of analysts by the number of hours saved. This should give you a tangible view of the money saved.
- Cost Savings: Demonstrate the reduction in manual effort through automation. For example, if the automated incident response workflow saves 2 hours per incident, and the security team handles 100 incidents per month, that’s 200 hours saved. Multiply the analyst’s hourly rate by the hours saved to quantify the cost savings.
Presenting Your Findings
When presenting your ROI analysis, focus on clarity and simplicity. Avoid technical jargon and present your findings in a visually appealing format, such as graphs and charts. Highlight the key benefits in terms of risk reduction, cost savings, and improved security posture. Tailor your presentation to the specific needs and interests of your audience.
Beyond the Numbers: The Intangible Benefits
While ROI is primarily focused on quantifiable metrics, it’s also important to acknowledge the intangible benefits of SIEM/SOAR integration, such as improved team morale, increased collaboration, and enhanced threat visibility. These factors contribute to a more resilient and effective security organisation, even if they are harder to measure directly. Also, improvements of your networks infrastructure and resilience help reduce the time to remedial action and prevent compromises on the network altogether.
Effective use of dark web monitoring allows networks to pre-emptively block domains and IP addresses used for botnet command and control. When a compromise has been detected, an action plan must be put in place to ensure it is dealt with effectively and to help future proof a companies security infrastructure.
Ultimately, demonstrating the value of SIEM/SOAR integration requires a data-driven approach. By carefully tracking key metrics and translating them into monetary value, you can effectively communicate the benefits of automation to stakeholders and secure the ongoing investment needed to protect your organisation from cyber threats.