Wiz, a cloud-security startup founded by the team that built Microsoft Azure’s cloud security stack, closed a $130 million funding round in what has been (another) very good week for cybersecurity unicorns. The Series B round, announced a little over a year since the company’s launch and its $100 million Series A, pushed Wiz’s valuation to $1.7 billion.

The startup doesn’t share revenue or customer numbers but says that more than 10% of the Fortune 500 deployed Wiz. Its customers include DocuSign, AON, The Home Depot, United Airlines, Mars, and Massachusetts Mutual Life Insurance Co.

Wiz CEO Assaf Rappaport attributes his company’s rapid rise to unicorn status to the growing importance of — and challenges around — cloud security.

“It’s a huge problem, top of mind, I’m talking No. 1 or No. 2, for any organization we’re speaking with,” he said. “It’s relevant for any industry, and any maturity level from the largest, most highly-regulated organizations in the world to small startups. They are all building a strategy in the cloud, and security is important for them. So it’s great to see the same solution works for teams that are super huge and much smaller teams.”

Wiz developed agentless security software that scans all of the containers and virtual machines in customers’ cloud environments and analyzes all of their workloads, even if a resource isn’t online. It supports hybrid- and multi-cloud environments. Customers can connect Wiz to public clouds (including Amazon Web Services, Microsoft Azure, and Google Cloud Platform) as well as on-premises private clouds like OpenShift. Wiz also connects to managed container services and self-managed Kubernetes.

The startup has about 65 employees now, and its executives say the latest funding will allow Wiz to grow the team and invest in research and development.

“It’s rare that there is a technology breakthrough that is able to so quickly compete and win against the leading cloud security products,” Wiz CTO Ami Luttwak said. “Our goal now is to expand what we do, and our solution is the right approach. It’s one solution customers deploy immediately, it scales in minutes, and gives you your entire cloud security baseline that you want to enforce across all of your IT. We are going to expand coverage, and we’re going to extend additional layers of the stack.”

Wiz says its top competitor remains Palo Alto Networks, and its Series B announcement comes the same week as fellow cloud security unicorn Orca Security announced its latest investment and plans to take on cybersecurity giant Palo Alto Networks. Orca Security, on Tuesday, said it closed a $210 million Series C funding on a $1.2 billion valuation.