hi @xushuang_hu
I believe there may be a confusion here.
While the first link mentions all the security features for our hosted customers, the second is a doc on how to install Weaviate using our helm chart on a self hosted maneer.
When deploying Weaviate yourself, you can enable a range of security layers, such as encryption at rest or SSL for exposing Weaviate, etc. But is “outside” of Weaviate, and will depend on other componentes.
Let me know if this helps.
Thanks!