Question: I'm looking for a service that provides continuous security testing and validation to shrink my organization's attack surface.

First up is UpGuard. The service offers third-party risk and attack surface management. It continually monitors third-party security postures, scans domains, IP and other external assets, and sends alerts through channels like Jira, ServiceNow or Slack. UpGuard's interface is designed to streamline workflows and automate risk discovery so you can better manage and communicate security information to others.

Another option is Tenable, which offers a range of products for vulnerability management, cloud security and operational technology security. It offers real-time vulnerability assessment and prioritization, attack path analysis and support for multi-cloud environments. The service helps you understand, prioritize and remediate cyber risk across your full attack surface, which is a good foundation for proactive cyber risk management.

If you want something more specialized, JupiterOne offers a cyber asset analysis platform that offers complete enterprise visibility. It collects asset, vulnerability and compliance data from more than 200 integrations and offers features like asset inventory and compliance mapping to standards like PCI-DSS and HIPAA. JupiterOne is geared for large enterprises with thousands of cyber assets and is designed to automate compliance and incident response.