Cybersecurity provider Armis Inc. has bought Silk Security Inc., a startup that helps enterprises find vulnerabilities in their infrastructure and understand their severity.

Armis detailed in its acquisition announcement today that the deal values Silk at $150 million. That’s more than 10 times the $12.5 million in funding the latter company had previously raised from investors. The deal comes about four years after Armis was itself bought for $1.1 billion by Insight Partners, which was also an early backer of Silk.

San Francisco-based Armis provides a device security platform called Centrix. The software can automatically create an inventory of all the employee handsets, servers, routers and other systems in a company’s networks. It then scans those devices for cybersecurity issues.

When Centrix detects signs of malicious activity in a system, it can automatically disconnect it from the network. Additionally, the platform spots vulnerable devices that might not actively be targeted by hackers but could experience a breach in the future. The acquisition of Silk will help enhance Armis’ capabilities in this latter area.

Silk provides a platform that can map out the vulnerabilities in an organization’s network and rank them by severity. That allows administrators to fix the most urgent issues first, which helps reduce the risk of hacking. Silk says that its platform can determine the severity of both configuration-related security issues and software vulnerabilities such as those tracked in the CVE database.

The platform lends itself to a number of other tasks as well. After finding a vulnerability in a given system, it can identify which engineers are responsible for maintaining that system and send them an alert. The platform measures the amount of time it takes to fix each vulnerability to help companies evaluate the effectiveness of their remediation workflows.

“To ensure the entire attack surface is both defended and managed in real time, organizations need a comprehensive solution that quantifies and reduces risk continually through the ability to prioritize and remediate the most important security findings at any given time, in any environment,” said Armis co-founder and Chief Executive Officer Yevgeny Dibrov.

The acquisition of Silk comes about two months after Armis bought another cybersecurity startup, CTCI Inc., in a deal reportedly worth $20 million. The latter company developed a platform for creating honeypots, software objects that appear like sensitive business records or applications. If hackers attempt to access such a honeypot, CTCI’s platform can detect the breach and notify administrators.

Image: Armis