What is the name for the pattern of requiring the user to enter their password again to access high value profile information (billing, email)?

Many sites leave the user logged in for typical tasks but require the password to be entered again for certain high-value screens if it's been too long since the user authenticated with username and password. What's the name of this pattern?

Specific examples: Amazon, which lets you browse and add to a cart with an old session but requires a password to check out, or Github, which lets you open tickets, comment on PRs, and commit code but requires a password to see your API keys if you've had a session open a while.