Hardening BYOD: Implementing Critical Security Control 3 in a Bring Your Own Device (BYOD) Architecture

by Christopher Jarko

The increasing prevalence of Bring Your Own Device (BYOD) architecture poses many challenges to information security professionals. These include, but are not limited to: the risk of loss or theft, unauthorized access to sensitive corporate data, and lack of standardization and control. This last challenge can be particularly troublesome for an enterprise trying to implement the Center for Internet Security (CIS) Critical Security Controls for Effective Cyber Defense (CSCs). CSC 3, Secure Configurations for Hardware and Software on Mobile Devices, Laptops, Workstations and Servers, calls for hardened operating systems and applications. Even in traditional enterprise environments, this requires a certain amount of effort, but it is much more difficult in a BYOD architecture where computer hardware and software is unique to each employee and company control of that hardware and software is constrained. Still, it is possible to implement CSC 3 in a BYOD environment. This paper will examine options for managing a standard, secure Windows 10 laptop as part of a BYOD program, and will also discuss the policies, standards, and guidelines necessary to ensure the implementation of this Critical Security Control is as seamless as possible.

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