A company has a three-tier environment on AWS that ingests sensor data from its users' devices. The traffic flows through a Network Load Balancer (NLB) then toA...

A company has a three-tier environment on AWS that ingests sensor data from its users' devices. The traffic flows through a Network Load Balancer (NLB) then toAmazon EC2 instances for the web tier, and finally toEC2 instances for the application tier that makes database calls.
What should a solutions architect do to improve the security of data in transit to the web tier?