Sqreen

Application security platform delivering runtime protection and in-app monitoring for web applications. Combines Runtime Application Self-Protection with an in-app Web Application Firewall to detect, block, and trace attacks from the network layer down to the specific line of code, unlike perimeter-only solutions that miss application-level exploits.

Acquired by Datadog in 2021 and now integrated as Datadog App and API Protection. Sqreen stood out by correlating attacks with stack traces and application context, enabling security, development, and ops teams to investigate and remediate incidents in a unified workflow. The technology addresses vulnerabilities that traditional IDS and firewalls miss, such as SQL injection, cross-site scripting, and business-logic abuse.

Key capabilities:

• Runtime Application Self-Protection and in-app WAF for production environments
• Attack tracing from HTTP requests to code-level root cause with stack traces and logs
• OWASP Top 10 and OWASP API Top 10 detection and blocking
• Protection against credential stuffing, account takeover, and business-logic abuse
• Agent-based instrumentation for Node.js, Ruby, Python, PHP, and Go

Teams use it to secure microservices and APIs without separate WAF appliances. Developers gain visibility into which code paths are under attack and can block malicious requests in real time. Integration with APM and observability tooling supports DevSecOps workflows and reduces the gap between application developers and security responders.