# Internetwork traffic privacy
<a name="Security"></a>

Amazon ElastiCache uses the following techniques to secure your cache data and protect it from unauthorized access:
+ **[Amazon VPCs and ElastiCache security](VPCs.md)** explains the type of security group you need for your installation.
+ **[Identity and Access Management for Amazon ElastiCache](IAM.md)** for granting and limiting actions of users, groups, and roles.

**Topics**
+ [Amazon VPCs and ElastiCache security](VPCs.md)
+ [ElastiCache API and interface VPC endpoints (AWS PrivateLink)](elasticache-privatelink.md)
+ [Subnets and subnet groups](SubnetGroups.md)