Exam 70-744 topic 1 question 172 discussion

Your network contains an Active Directory domain named contoso.com. The domain contains 1,000 client computers that run Windows 10.
A security audit reveals that the network recently experienced a Pass-the-Hash attack. The attack was initiated from a client computer and accessed Active
Directory objects restricted to the members of the Domain Admins group.
You need to minimize the impact of another successful Pass-the-Hash attack on the domain.
What should you recommend?