New Jersey lawyers have a longstanding ethical obligation to make reasonable efforts to prevent the inadvertent or unauthorized disclosure of information relating to the representation of a client. The actual scope of that obligation, however, remains uncertain in light of the dearth of guidance on the issue and the never-ending advances in technology that facilitate efficient and effective professional services. A recent California ethics opinion serves as an important guide to New Jersey lawyers regarding the use of electronic devices that contain confidential client information and the obligations of a lawyer in the event of actual or suspected unauthorized access by third parties to confidential client information.