CSOonline.com: This critically acclaimed website is the premier resource for enterprise security decision-makers.

CSO Online, an online publication (Computer Security Online)

A chief security officer (CSO) is an executive responsible for the safety and security of company data, personnel, and assets.

In its broadest definition, chief security officer may refer to the person chiefly responsible for an organization's information security, as well as its so-called “corporate security” — that is, the physical security and safety of employees, facilities and assets.