Community of interest (COI or CoI) is a means in which network assets and or network users are segregated by some technological means for some established purpose, a strategy in the realm of computer security, itself a subset of security engineering.
On Wikipedia, Facebook, YouTube and many more sites, people come together as a community of interest to work toward a common goal, learn from each other, critique each other and share ideas.
A COI is a group of professionals and advisors that share business insights, technical expertise, challenges, and perspectives.
Individual members may be expected to: COI security requirements can range in sophistication from simple network file shares to an interconnection of physically separate sites that are connected via dedicated communication circuits.
COI security mechanisms and the respective basic characteristics are identified in the Table.
[3] COIs that require additional dedicated physical resources (e.g., dedicated router, VPN and firewalls devices) are usually more complex in nature and expensive to operate because of the added network devices and the personnel to operate and manage them.