To ensure the security of PeopleSharz's system, the company should implement various measures to prevent threats and vulnerabilities. These measures include employee education and awareness programs, removable media controls, managing user privileges, incident management, monitoring, malware protection, and network security. The company should also establish policies and documentation that support these activities. By implementing these measures, PeopleSharz can reduce the risk of system breaches and ensure the confidentiality, integrity, and availability of their data.