Marie-Pier Rochon Marie-Pier Rochon

AWS Account Suspension Resolved in Under 6 Hours

An AI SaaS startup's AWS account was suspended hours before a critical investor meeting after attackers exploited leaked credentials. I resolved the suspension in under 6 hours by identifying what AWS actually needed, coordinating remediation, and restoring their website before the demo. Post-incident analysis revealed an ongoing vulnerability that had been leaking credentials for weeks—preventable with proper monitoring and IAM roles instead of long-term credentials.

An AI SaaS startup's AWS account was suspended hours before a critical investor meeting after attackers exploited leaked credentials. I resolved the suspension in under 6 hours by identifying what AWS actually needed, coordinating remediation, and restoring their website before the demo. Post-incident analysis revealed an ongoing vulnerability that had been leaking credentials for weeks—preventable with proper monitoring and IAM roles instead of long-term credentials.

About the client

An AI SaaS startup with half a dozen AWS accounts, preparing to secure their Series A funding round. Their development team was distributed across multiple countries, with offshore engineers managing day-to-day AWS operations.

The main issue

The client's production AWS account was suspended after leaked IAM User credentials were exploited by external attackers to create unauthorized IAM users. This was the third suspension event in a month.

Their production application and website went completely offline. The timing couldn't have been worse — they had a critical investor meeting the next day, and their product needed to be live for the demo.

Their offshore development team had been going back and forth with AWS Support for over 48 hours, but the account remained suspended. Despite following the steps AWS Support provided — rotating credentials and removing the compromised access keys — the account was not reinstated.

What cause this crisis

The application was using long-term IAM User credentials (access keys) instead of IAM roles. A vulnerability in their web application framework allowed attackers to extract these credentials remotely. Because the IAM User had Administrator Access permissions, attackers were able to create new IAM users in the account — which triggered AWS to suspend the account entirely.

The offshore team had done what AWS Support asked: they deleted the access keys and detached the admin policy. But AWS wouldn't reinstate the account, and the team couldn't get a clear answer on what else was needed.

How I helped

The client's founder reached out to me directly, knowing my background as an AWS Security Hero with deep experience in AWS IAM and incident response.

Within the first hour, I was able to:

  • Get through to AWS Support and identify the actual blocker — the internal AWS service team required the compromised IAM User to be fully deleted, not just have its credentials rotated. This critical detail wasn't communicated clearly to the offshore team.

  • Coordinate the remediation — I guided the team through deleting the compromised user, creating a replacement IAM User with tightly scoped permissions (no IAM access), and issuing new credentials to the application.

  • Resolve access flagging — The offshore team members were being flagged as suspicious access. I confirmed their legitimacy with AWS Support to prevent future blocks.

The account was reinstated and the website was back online in under 6 hours from when I got involved. The investor meeting went ahead as planned.

The Underlying Problem

My post-incident investigation revealed that the credential leak was ongoing — attackers had been extracting credentials through a remote code execution vulnerability in the application framework. Failed exploitation attempts had been visible in CloudTrail logs for weeks before the first successful breach.

I delivered a security incident report with prioritized recommendations: identify and patch the application vulnerability, scope all IAM permissions to specific resources, migrate from long-term credentials to IAM roles, and enable GuardDuty for proactive threat detection.

Key Takeaways

  • Long-term IAM User credentials are a ticking time bomb. If your application uses access keys instead of IAM roles, a single application vulnerability can hand attackers the keys to your entire AWS account.

  • AWS Account Suspension requires specific actions. Following generic support guidance isn't always enough — understanding what the internal AWS service teams actually need can be the difference between hours and days of downtime.

  • Distributed teams face additional friction with AWS Support. Access from unexpected geographies can trigger additional scrutiny, compounding an already stressful incident.

  • CloudTrail tells the story — if you're watching. The warning signs were visible weeks before the account was suspended. Proactive monitoring with GuardDuty and CloudTrail alerting could have caught this before it became a crisis.

Client Feedback

"Great work! Amazing work ethic and speed, professional — straight to the point."


Is your startup using long-term AWS credentials? Are you confident your AWS environment could survive a security incident without losing days of availability? Get in touch for a security review before it becomes a crisis.

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