When a data breach hits, it’s easy to go into panic mode. Your first instinct? Fix it fast. But what if you could turn that crisis into an opportunity to come back stronger? That’s exactly what we did when our client faced a major data leak. This case study walks you through how we handled a serious data leak for a client using the principles of Site Reliability Engineering (SRE) and Datadog’s powerful tools.
How Site Reliability Engineering (SRE) Helped us Manage a Critical Data Leak
As we moved forward, it was clear that we needed a well-structured approach to data privacy. That’s where Site Reliability Engineering (SRE) came in. By applying SRE principles, we were able to break down the resolution process into manageable steps, tackling the issue methodically. With Datadog’s tools on our side, we quickly got to work and put our plan into action.
1. Immediate Countermeasures
- Restricting access to queries: The first thing we did was lock down access to the query at the center of the issue. Only authorized admins could view the logs connected to the affected service, reducing the chances of further unauthorized access.
- Revoking unnecessary admin access: We also trimmed down admin privileges for anyone who didn’t need them. By limiting the number of high-level accounts, we made it harder for the leak to spread or happen again.
- Engaging Datadog support: We also got in touch with Datadog support right away. Our collaboration allowed us to get expert input quickly, helping us strengthen access controls, identify weak spots, and respond faster to the breach.
2. Permanent Solution at Datadog Side
We knew that addressing the immediate threat wasn’t enough. To prevent future leaks, we worked on a lasting solution, focusing on proactive measures that would catch problems before they even start.
- Implementing a sensitive scanner: We introduced a Sensitive Scanner that automatically detects 40 different types of sensitive data like personally identifiable information (PII) and financial details. This tool acts as an early warning system, stopping leaks before they happen.
- Redaction mechanisms for sensitive data: To make sure sensitive data stays safe, we added redaction features. This replaced sensitive info with masked values, so even if someone gained access, the data would be unreadable.
- Dashboard for sensitive info listing: We built a dashboard to track all types of sensitive data that were leaked. This gave us a clear view of the scope and nature of the leak, making it easier for the team to act quickly and decisively.
- Evolving sensitivity scanning: Data privacy isn’t static. Therefore, we regularly updated our sensitivity scanning process, fine-tuning the detection capabilities to spot new types of sensitive information as they emerge.
3. Additional Security Measures
To make sure we had all our bases covered, we added a few extra layers of security:
- Masking archived logs in S3: To protect archived logs stored in S3, we added a masking mechanism. Even if someone tried to access the archived logs, sensitive data would stay hidden.
- Notifying app teams via dashboard: We kept all app teams in the loop by using the dashboard to alert them about any leaked sensitive info. This allowed them to fix the code that caused the leak and take preventive actions.
- Linking services to monitors: We set up monitors that would automatically alert us if any service triggered a sensitivity scan. This meant we could respond in real-time if a new issue arose.
- Restricted rehydration for specific services: For extra precaution, we restricted the ability to rehydrate logs for the service involved in the leak. Even if the logs were accessed again, sensitive information would stay protected.
Ensuring Data Protection and Preventing Future Leaks
Thanks to our use of Datadog and a proactive approach, we were able to act quickly and decisively to stop the data leak. Our focus was on continuous improvement, educating app teams on best practices, and refining our security measures to stay ahead of potential threats.
With these steps in place, we’re confident our client’s data will stay secure, and future leaks will be prevented before they even have a chance to start.