As part of their day-to-day work, each member of our analysis team must handle a variety of sensitive information. For example: username and passwords for our internal databases, and tokens for accessing APIs. Some of this is specific to each individual, while some are shared by the whole team.
Ideally, each team member would only need to enter some individual login information once and then have automatic access to everything. For instance, our custom analysis libraries would need to be able to find the tokens it needs to access the web services we use.
What is a best practice for handling this type of situation?