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• Moving personnel around reduces the risk of fraud, data modification, theft,
sabotage, and misuse of information.
Figure 2.2 An example of job rotation among management positions
Job rotation requires that security privileges and accesses be reviewed to maintain
the principle of least privilege. One concern with job rotation, cross-training, and long-
tenure employees is their continued collection of privileges and accesses, many of
which they no longer need. The assignment of privileges, permissions, rights, access,
and so on, should be periodically reviewed to check for privilege creep or misalignment
with job responsibilities. Privilege creep occurs when workers accumulate privileges
over time as their job responsibilities change. The result is that a worker has more
privileges than the principle of least privilege would dictate based on that individual’s
current job responsibilities.
Employment Candidate Screening
Employment candidate screening, background checks, reference checks, education
verification, and security clearance validation are essential elements in proving that a
candidate is adequate, qualified, and trustworthy for a secured position. In addition to
employment agreements, there may be other security-related documentation that must be
addressed. One common document is a nondisclosure agreement (NDA). An NDA is used to
protect the confidential information within an organization from being disclosed by a former
employee.
Employment Termination Processes
When an employee must be terminated, numerous issues must be addressed. An
employee termination process or procedure policy is essential to maintaining a secure
environment when a disgruntled employee must be removed from the organization. The
following list includes some other issues that should be handled as soon as possible:
• Make sure the employee returns any organizational equipment or supplies from
their vehicle or home.
• Remove or disable the employee’s network user account.
ITEC106 – Systems Security Mr. John Mark L. Dula