Wesley Hales and Max Bruce, co-founders of LeakSignal, discuss layer seven cybersecurity solutions and their use of WebAssembly technology. They delve into the implementation and potential of Proxy WASM, the components of LeakSignal, and the limitations of eBPF for complex scanning.
LeakSignal offers tools to detect and prevent data exfiltration in service meshes and proxies using proxy WASM technology.
Proxy WASM technology enhances the functionality of Envoy and Nginx proxies, enabling advanced traffic analysis and micro-segmentation.
Deep dives
Leak Signal: A Cloud Native Solution for Data Exfiltration Prevention
Leak Signal is a startup that has built a set of tools and products to detect and prevent data exfiltration in service meshes and proxies. They offer a plugin that works with Envoy proxy, Nginx, AWS Lambda, and more, using proxy WASM technology. The plugin provides real-time traffic analysis and classification of sensitive data on the request and response level, allowing companies to identify potential data leaks. Leak Signal also offers a cloud-hosted or on-premises command module that collects telemetry and provides visibility into the data flow. With their micro-segmentation capabilities, companies can automatically group services based on the sensitive data they handle, achieving PCI compliance and other security requirements. Leak Signal's policy enforcement allows for proactive alerting, blocking, and rate limiting based on predefined rules and statistical models. While other emerging technologies like eBPF and the Kubernetes Gateway API were discussed, Leak Signal focuses on providing a comprehensive solution using the power of proxy WASM, making it accessible and efficient for a wide range of enterprise infrastructures.
Proxy WASM: Enhancing the Power of Envoy and Nginx Proxies
Leak Signal leverages the capabilities of proxy WASM technology to enhance the functionality of Envoy and Nginx proxies. Proxy WASM allows for the deployment of WASM modules in reverse proxies, providing the benefits of a native plugin or module while remaining generic across different reverse proxies. It offers a safe sandbox for running these modules and provides fault tolerance by allowing them to run in isolation from the main proxy, preventing crashes from affecting the overall service. Proxy WASM enables advanced traffic analysis, classification of sensitive data, micro-segmentation, and policy enforcement directly in the proxy layer, improving security and visibility without requiring changes to the underlying code. While eBPF is another emerging technology often associated with sidecar proxies, Leak Signal found that eBPF's limitations in handling complex layer 7 logic made it less suitable for their specific use case.
Preventing Data Leaks and Enabling Fine-Grained Access Control
Leak Signal's primary focus is to prevent data leaks and enable fine-grained access control in cloud-native environments. Their plugin and policy enforcement mechanisms allow businesses to identify sensitive data on the request and response level in real time. By establishing a baseline for normal data flows and leveraging statistical models, they can detect anomalies that suggest potential leaks or suspicious behavior. Additionally, Leak Signal offers service-based access control and rule systems that enable proactive alerting, blocking, and rate limiting. Their platform collects telemetry data and provides visibility into data flows, helping organizations achieve compliance requirements and mitigate security risks. By utilizing the power of advanced proxies like Envoy and Nginx, Leak Signal makes it possible to enhance security and access control without significant modifications to existing code or infrastructure.
The Future of Security in Service Meshes and Proxies
Leak Signal's innovative approach highlights the importance of leveraging emerging technologies to enhance security in cloud-native environments. Their use of proxy WASM showcases the potential of this technology in enabling advanced traffic analysis, data classification, and policy enforcement. While technologies like eBPF and the Kubernetes Gateway API are also noteworthy, Leak Signal has found that their current focus on proxy WASM provides a comprehensive solution that addresses the needs of enterprise infrastructures. Their ability to work with various proxies and offer both cloud-hosted and on-premises options makes their platform accessible and flexible. By staying at the forefront of emerging trends in security and infrastructure, Leak Signal aims to continue providing cutting-edge solutions that help organizations protect their data and mitigate risks.
Guests are Wesley Hales and Max Bruce are co-founders of LeakSignal. LeakSignal is an American startup which is building a set of tools and products to detect and prevent data exfiltration in Service Meshes and proxies supporting Envoy and proxy-wasm.
Do you have something cool to share? Some questions? Let us know: