Transaction Safeguards—11​.300 (d)

"(d) Use of transaction safeguards to prevent unauthorized use of passwords and/or identification codes, and to detect and report in an immediate and urgent manner any attempts at their unauthorized use to the system security unit, and, as appropriate, to organizational management."

System events can be created to document failed logon attempts in the event someone attempts to logon as a different user. There is no technological control to prevent unauthorized use of IDs or passwords if those ID and password combinations are compromised or known to more than the individual assigned a specific ID and password combination.