The best approach to bring your own device (BYOD) service delivery that provides the best protection from data loss is to enforce strong passwords and data encryption. BYOD is a service delivery model that allows the users to use their own personal devices, such as smartphones, tablets, or laptops, to access the enterprise’s network, applications, or data. BYOD can provide various benefits, such as increased productivity, flexibility, and satisfaction of the users, as well as reduced costs and maintenance of the enterprise. However, BYOD also poses various risks, such as data loss, data breach, malware infection, or unauthorized access, as the personal devices may not have the same level of security and control as the enterprise-owned devices. Enforcing strong passwords and data encryption is the best approach to protect the data on the personal devices, as it helps to prevent or limit the unauthorized access, disclosure, or theft of the data, especially if the devices are lost, stolen, or compromised. Enforcing strong passwords and data encryption also helps to comply with the legal and regulatory requirements for data protection and privacy. Enabling data wipe capabilities, penetration testing and session timeouts, and implementing remote monitoring are also useful approaches, but they are not as effective as enforcing strong passwords and data encryption, as they are either reactive or detective measures, rather than proactive or preventive measures. References = CRISC Review Manual, 6th Edition, ISACA, 2015, page 217.