As organizations impose distinct role requirements on different members, they eliminate communication barriers

Self-understanding is an important starting point in developing good human relations

Indicate whether the statement is true or false

When U.S. Leasing (USL) computers began acting sluggishly, computer operators were relieved when a software troubleshooter from IBM called. When he offered to correct the problem they were having, he was given a log-on ID and password

The next morning, the computers were worse. A call to IBM confirmed USL's suspicion: Someone had impersonated an IBM repairman to gain unauthorized access to the system and destroy the database. USL was also concerned that the intruder had devised a program that would let him get back into the system even after all the passwords were changed. What techniques might the impostor have employed to breach USL's internal security?