AllAccessDisabled is usually larger than a simple permissions problem. Instead of focusing only on IAM policies, investigate the health and status of the AWS account itself.
At first glance, it looks more like a circuit board than a computer. Yet millions of people around the world use Raspberry Pi computers to learn programming, build projects, host services, and experiment with technology.
Passwords are still important. But modern security assumes that passwords may someday be exposed. Multi-Factor Authentication adds another checkpoint between an attacker and your account.