How can a company detect and notify security teams about PII in S3 buckets?

Use Amazon Macie. Create an EventBridge rule for SensitiveData findings and send an SNS notification.

Use Amazon GuardDuty. Create an EventBridge rule for CRITICAL findings and send an SNS notification.

Use Amazon Macie. Create an EventBridge rule for SensitiveData:S3Object/Personal findings and send an SQS notification.

Use Amazon GuardDuty. Create an EventBridge rule for CRITICAL findings and send an SQS notification.