Articles

Cloud

Cloud errors explained: how to read an AWS “not authorized” message, find the missing IAM permission and fix it.

Azure and Entra ID "AADSTS" errors: what the most common codes mean, and how to fix them

Fix Microsoft Entra ID AADSTS sign-in errors: 50076 (MFA), 700016 (app not found), 7000215 (bad secret), 50011 (reply URL), 65001 (consent), 53003 (Conditional Access).

Intermediate · 5 min read

Access Denied

Cloud

AWS S3 "403 Access Denied": a checklist for every layer that can refuse you

Fix AWS S3 "403 Access Denied": check your identity, IAM and bucket policies, ListBucket, Block Public Access, KMS keys, cross-account ownership and CloudFront, in order.

Intermediate · 5 min read

is not authorized to perform

Cloud

AWS "is not authorized to perform … because no identity-based policy allows": read the error, find the missing permission

Fix AWS AccessDenied "is not authorized to perform": read who, which action and which resource, check the policy, explicit denies, bucket and KMS key policies.

Intermediate · 4 min read