Mobile device technology is changing at a rapid pace, as are the ways consumers are interacting with those devices.  This atmosphere is continually creating new cybersecurity and data privacy challenges that demand the attention of retailers, app developers, consumers and regulators.  During a recent panel at PLI’s Sixteenth Annual Institute on Privacy and Data Security Law, Aaron P. Simpson, a partner at Hunton & Williams, and H. Leigh Feldman, global chief privacy officer at Citi, discussed privacy and security issues in the mobile arena.  This article, the first of a two-part series, explains the specific challenges related to mobile and wearable technology and presents best practices for stakeholders as consumers demand control of their information.  See “Tackling Privacy and Cybersecurity Challenges While Fostering Innovation in the Internet of Things” (May 20, 2015).  The second article in the series will discuss the complex policy and regulatory landscapes for mobile devices in the U.S. and Europe, including enforcement efforts.