S3 buckets should block public ACLs on buckets and any objects they contain. By blocking, PUTs with fail if the object has any public ACL a.
PUT calls with public ACLs specified can make objects public
Enable blocking any PUT calls with a public ACL specified
The following example will fail the aws-s3-block-public-acls check.
The following example will pass the aws-s3-block-public-acls check.