The document discusses how lawyers' use of cloud computing has raised ethical questions regarding how they select and use cloud vendors and products. In response, the ABA formed the Ethics 20/20 commission to investigate how the Model Rules apply to cloud computing. Several Model Rules have come under scrutiny, including those regarding confidentiality, competence and diligence, duties to prospective clients, unauthorized practice of law, and duty to supervise. The document provides guidance on how lawyers can comply with these rules when using cloud computing to ensure client confidentiality and properly vet cloud vendors and technology choices.