Hey
@Ramon Vermeulen, interesting question!
We have SOC 2 type II certification and we provide security documentation and audit info but only to our cloud customers (I believe dbt labs do the same...). You can
read about it here.
As our cloud product uses the dbt package and some of the CLI code, our security audit included a review of these products as well.
Generally speaking about dbt packages -
In developing a dbt package we are limited only to the functionality that dbt-core exposes. For example - A dbt package can't create files, execute files, access files, initiate network sessions, etc.
It can execute SQL queries as part of your dbt invocations, with the permissions given to dbt core.
Hope this helps!