Does the security of Xicheng (villa) community in China Merchants Overseas Chinese Town often change?

Hello! Most of the security guards in China Merchants Overseas Chinese Town are 10 years of service, and for this high-end villa community, the quality of security personnel is relatively strict. You don't need to recruit anyone as a security guard like some small communities. After all, customers and friends who can afford villas are concerned about the comfort and safety of the community.