3,000 Companies Just Proved Your Cloud Security Checklist Is Broken

Robert Moore · 2026-09-07

If managing security across multiple cloud providers wasn't hard enough, each one fails in a different way. That's not just a hunch. For the 2026 Cloud Security Index, Intruder analyzed misconfiguration data from 3,000 organizations across AWS, Azure, and Google Cloud. The finding? Risk profiles across providers have almost nothing in common. Here's what the data looks like — and why it matters for your security strategy. ### The Myth of the Universal Checklist Most security teams build a single checklist and apply it everywhere. It's efficient. It's tidy. And according to the data, it's also wrong. When Intruder crunched misconfiguration data from thousands of organizations, they found that the most common risks on AWS barely overlap with the most common risks on Azure or Google Cloud. A setting that's dangerous in one environment might be perfectly fine in another. That's a problem if your security posture assumes all clouds behave the same way. ### What the Data Actually Shows Across the three major providers, the patterns diverge in telling ways: - **AWS**: Misconfigurations often cluster around identity and access management — overly permissive roles, stale access keys, and public S3 buckets that should have been locked down months ago. - **Azure**: The trouble tends to show up in network security groups and storage account settings, where default configurations quietly expose resources to the internet. - **Google Cloud**: Issues frequently involve IAM policies and firewall rules, especially when teams migrate workloads without revisiting inherited permissions. In other words, the same checklist that catches problems on AWS might miss the exact issues that matter most on Azure. > "The cloud providers don't just differ in features — they differ in how they fail." That's the takeaway from the 2026 Cloud Security Index, and it's a wake-up call for anyone managing multi-cloud environments. ### Why This Happens Each provider designs its platform around different assumptions. AWS was built for flexibility, which means defaults are often permissive. Azure integrates deeply with Microsoft's ecosystem, so misconfigurations often stem from identity and network overlaps. Google Cloud emphasizes automation, which can amplify mistakes when policies aren't carefully scoped. No single vendor is "worse" — they just fail differently. And that means your security approach has to adapt. ### What You Should Do Instead Stop treating your cloud security checklist as universal. Start building provider-specific playbooks that address the unique failure modes of each platform. - Audit each cloud environment separately, not as one big bucket. - Map your controls to the specific risks that show up in that provider's data. - Revisit configurations after every migration or major change. - Train your team on the differences, not just the similarities. The 2026 Cloud Security Index makes one thing clear: if you're using the same checklist for AWS, Azure, and Google Cloud, you're probably missing something important. The data doesn't lie — and neither do the breaches that follow.