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Rinki Sethi and Amiram Shachar
Rinki Sethi and Amiram Shachar

Why I Chose Upwind and Why This Series B Matters

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Rinki Sethi January 26, 2026

Cloud infrastructure has become more complex than ever.

Environments are bigger, faster, and more interconnected. The explosion of data and the rapid adoption of AI have accelerated that complexity. Security teams are now managing risk in systems that change constantly and operate at unprecedented scale.

The tools that got us here cannot take us where we are going. This new reality demands something different.

When Old Assumptions Break

For years, cloud security products helped teams establish visibility and manage growth. They were necessary and effective for their time. But the assumptions they were built on no longer hold. Static environments are gone. Predictability is gone.

That gap is what led me to Upwind.

Why I Chose Upwind, First as a Customer

Before joining the company, I chose Upwind as a customer. I was looking for clarity in an environment that had outgrown traditional approaches and for answers that reflected reality, not best guesses.

What stood out was a clear acknowledgment that the future of cloud security requires a fundamentally different approach. One designed for continuous change and increasing complexity.

That belief is why I chose Upwind as a customer. It is also why I chose to join the company.

One Year In, the Conviction Is Stronger

Next month marks my one year anniversary at Upwind, and my conviction has only grown. Over the past year, I have seen how teams change when they finally have clarity. They move faster. They stop reacting to noise and start making confident decisions. Security becomes more focused and more effective.

Why This Series B Matters

That is why this Series B matters.

Not because of the headline, but because it validates a belief we committed to early. It gives us the ability to scale what is working, invest deeper in our customers, and continue building for the future reality of cloud, data, and AI.

This funding is fuel, not a finish line.

One year in, I am beyond proud of the decision I made as a customer and as an employee. And I am excited about what we are building next. This is our next wave.

A special thank you to Bessemer Venture Partners, Salesforce Ventures, and Picture Capital for joining us on this journey. We are equally grateful to Greylock Partners, Craft Ventures, Cyberstarts, TCV, Gili Raanan, Saam Motamedi, David Sacks, Gideon Hayden, Stephen Curry, Penny Jar Capital, and Omri Casspi for helping get us to this point and for believing in what comes next.

Hear What’s Next, Straight From Us

Want to hear what this funding really means for the future of cloud security? We’d love to share it with you, directly.

Our founding and executive team is opening up 1:1 time to chat with anyone who’s curious about what’s next for Upwind, and how we’re building the next generation of runtime-powered cloud security.

Whether you’re a CISO, security leader, investor, or curious builder, drop your info below and we’ll personally reach out to schedule time.

Up and up!

Rinki Sethi 
Chief Security Officer 
Upwind

Meet with Our Executive Team

Contents

Further Reading

The Risk Isn't What You Prompt, It's What You Built.

The Risk Isn’t What You Prompt, It’s What You Built

Key Takeaways: Agentic AI security is an architecture problem, not a policy problem. Most organizations have adopted AI agents in the form of coding assistants, autonomous workflow tools, internal chatbots connected to production systems, but without establishing the foundational security frameworks those systems require. The adoption pressure is real. Telling your engineering team to stop…
Upwind is a Visionary Leader in Frost & Sullivan report

Upwind Named a Strong Visionary Leader in Frost & Sullivan’s 2026 Cloud/Application Runtime Security Radar

We're excited to share that Frost & Sullivan has recognized Upwind as a Strong Visionary Leader in the Frost Radar™: Cloud/Application Runtime Security, 2026. This recognition highlights the company's innovation, growth, and leadership in the emerging Cloud-Native Application Detection and Response (CNADR) market. For us, the recognition is meaningful not simply because of where Upwind…
API Custom Threat Detection

Upwind brings Custom Detection Policies for APIs

Every API has a different risk profile. An internal billing endpoint and a public-facing authorization endpoint don't fail the same way. They don't get attacked the same way either. A generic ruleset can't account for that. Custom rules can, and now those rules can see sensitive data too. This new release brings two things together…
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