Final answer:
Security controls are measures put in place to protect an information system and its data from unauthorized access and potential threats. These controls can be physical, technical, and administrative in nature and are implemented through policies, procedures, and technologies.
Step-by-step explanation:
The security controls in an information system are measures put in place to protect the system and its data from unauthorized access, misuse, and potential threats. These controls can include physical, technical, and administrative safeguards.
An example of a physical security control is a locked server room that requires authorized access. Technical controls can include firewalls, encryption, and intrusion detection systems. Administrative controls involve policies and procedures, such as user access management and regular security training.
These controls are employed within the information system and its environment of operation by implementing and enforcing security policies, procedures, and technologies. Regular audits and assessments are conducted to ensure the effectiveness of the controls and address any vulnerabilities or gaps in security.