
Mobile security, or more specifically mobile device security, is the protection of smartphones, tablets, and laptops from threats associated with wireless computing. It has become increasingly important in mobile computing. Of particular concern is the security of personal and business information now stored on smartphones.

Application security includes all tasks that introduce a secure software development life cycle to development teams. Its final goal is to improve security practices and, through that, to find, fix and preferably prevent security issues within applications. It encompasses the whole application life cycle from requirements analysis, design, implementation, verification as well as maintenance.

Juice jacking is a type of cyber attack involving a charging port that doubles as a data connection, typically over USB. This often involves either installing malware or surreptitiously copying sensitive data from a smart phone, tablet, or other computer device.

The Librem 5 is a smartphone manufactured by Purism that is part of their Librem line of products. The phone is designed with the goal of using free software whenever possible, includes PureOS, a Linux operating system by default, and as of 2021 is the only smartphone recommended by the Free Software Foundation. Like other Librem products, the Librem 5 focuses on privacy and freedom, and includes features like hardware kill switches, and easily-replaceable components. Its name, with a numerical "5", refers to its screen size, and not a release version. After an announcement on August 24, 2017, the distribution of developer kits and limited pre-release models occurred throughout 2019 and most of 2020. The first mass-production version of the Librem 5 was shipped on November 18, 2020.

Link Motion Inc, formerly NQ Mobile, is a multinational technology company that develops, licenses, supports and sells software and services that focus on the smart ride business. Link Motion's portfolio of offerings includes enabling technology solutions and secure connected carputers for car businesses, consumer ride sharing services, as well as legacy mobile security, productivity and other related applications. Link Motion maintains dual headquarters in Dallas, Texas, United States and Beijing, China. A Court Receiver, lawyer Robert Seiden, was appointed over Link Motion in February 2019 in the United States in the federal district court in the Southern District of New York by Judge Victor Marrero. The Receiver removed Wenyong “Vincent” Shi as chairman and chief executive officer, and replaced him by appointing Mr. Lilin “Francis” Guo.

Mobile secure gateway (MSG) is an industry term for the software or hardware appliance that provides secure communication between a mobile application and respective backend resources typically within a corporate network. It addresses challenges in the field of mobile security.

NowSecure is a Chicago-based mobile security company that publishes mobile app and device security software.

The StingRay is an IMSI-catcher, a cellular phone surveillance device, manufactured by Harris Corporation. Initially developed for the military and intelligence community, the StingRay and similar Harris devices are in widespread use by local and state law enforcement agencies across Canada, the United States, and in the United Kingdom. Stingray has also become a generic name to describe these kinds of devices.