When we think of clouds, we likely picture cumulus, stratus, and cirrus ones, not the type of “cloud” that holds data and software. The latter type of cloud is generally controlled by a third-party service provider and is used to store and transmit information in a shared environment. The use of clouds is ever-increasing, including by attorneys. This wide-spread use has prompted recent Illinois State Bar Association’s Professional Conduct Advisory Opinion Number 16-06 (the “Opinion”), which details attorneys’ obligations when using a cloud, which is allowed in Illinois.