AWS IAM Support
AWS IAM support, troubleshooting and optimization.
IAM controls everything on AWS. Overly broad policies are a security risk, and overly strict ones cause AccessDenied errors that block deployments.
Common IAM problems we fix
The AWS IAM issues our engineers see most often, and how we resolve them.
AccessDenied or not authorized to perform an action
The denial can come from an identity policy, resource policy, permissions boundary, SCP or session policy. We read the error and CloudTrail event, then fix the exact layer.
Least privilege and overly broad permissions
Policies with Action: * and Resource: * are risky. We use IAM Access Analyzer and access advisor to shrink permissions without breaking workloads.
Cross-account access and assume role errors
Trust policies, external IDs and role chaining cause failures. We design secure cross-account roles.
IAM users, access keys and MFA
Long-lived keys and missing MFA are common findings. We move to roles and IAM Identity Center and enforce MFA.
Service control policies and Organizations
SCPs silently limit what accounts can do. We structure organizations and guardrails safely.
How We Help With IAM
Senior AWS engineers who explain what they change and why.
What we do
- Policy audit and least-privilege rewrite
- IAM Identity Center and SSO setup
- Cross-account role design
- Security baselines and guardrails
How it works
- Tell us what is wrong or what you want to improve
- We review with read-only access first
- We fix, explain and document the change
- We hand off with monitoring so it stays fixed
Specialized IAM support
Deep-dive help for specific IAM tasks.
Troubleshooting AWS AccessDenied errorsFix AWS AccessDenied and UnauthorizedOperation errors. TwinTix checks identity policies, resource policies, SCPs, permission boundaries and session policies.
Least privilege with IAM Access AnalyzerShrink over-broad IAM permissions with Access Analyzer. TwinTix finds unused access and external sharing, then generates least-privilege policies.
Fixing cross-account AssumeRole errorsFix sts:AssumeRole AccessDenied in cross-account setups. TwinTix checks trust policies, external IDs, caller permissions, MFA and regional STS.
AWS IAM Identity Center (SSO) setupSet up IAM Identity Center for single sign-on across AWS accounts. TwinTix connects your identity provider, builds permission sets and retires IAM users.
Frequently Asked Questions
How do I fix an IAM AccessDenied error?
Find the denied action and resource in the error or CloudTrail, then check every policy layer that applies. The IAM policy simulator helps test changes.
What is least privilege?
Granting only the permissions needed for a task. We derive them from actual usage data.
Should we still use IAM users?
Prefer IAM Identity Center for people and roles for workloads. IAM users with access keys should be rare.
Need Help With AWS IAM?
Schedule an appointment. Describe the problem and we will tell you the fastest safe way to fix it.
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