Why are maintenance accounts a threat to operations controls?

A.
Maintenance might require physical access to the system by vendors or service providers.

B.
Maintenance accounts are commonly used by hackers to access network devices.

C.
Maintenance personnel could slip and fall and sue the organization.

D.
Maintenance account information could be compromised if printed reports are left out in the
open.

Explanation:
Maintenance accounts are login accounts to systems resources, primarily networked devices. They
often have the factory-set passwords that are frequently distributed through the hacker community.