Exam are currently under review by the AWS Certification Security team?

This situation is not uncommon. AWS conducts rigorous data forensics analysis after exam delivery to identify unusual patterns in test performance that might indicate irregular testing behavior. When significant deviations from normal testing patterns are detected, AWS may place exam results under review, which can delay the standard 5-business-day timeline for receiving results.

Since you've already contacted exam support, you're taking the right steps. The security team may take up to 3 weeks to complete their review process and determine if your results will be passed, failed, or invalidated. Unfortunately, during this review period, there isn't much more you can do except wait for the security team to complete their investigation.

It's important to understand that being under review doesn't necessarily mean you've done anything wrong. AWS's forensic analysis can flag results for various reasons, and the review is part of their process to maintain certification integrity.

If your results are eventually invalidated, you would have an opportunity to appeal the decision by following the process described in the AWS Certification Data Forensics Policy. For now, continue to engage with certification support as they are your primary point of contact for updates on your specific case.

Rest assured that AWS only communicates about invalidated exams and appeal processes with the candidates themselves, so your privacy is protected during this review.
Sources
AWS certification badge got revoked and exam results are under review. | AWS re:Post
Protecting AWS Certification value through security measures | AWS Training and Certification Blog
SAP exam result delayed | AWS re:Post