Abstract— Mobile devices are a big part of our daily life, and an integrated part of the daily business processes, due to the advantages that these devices offer. Businesses use these devices to gain a competitive advantage in the market. But this request for the mobile device to be added to the assets of the organization, comes with a price, and that is security. The mobile device user and the organization need to understand that this approach toward the access through mobile devices of the organization’s data and sources it is a big security matter. As the data that the mobile user will access in the remote device or his own mobile device is at risk. With risk, we understand the risk that comes with the network, applications, data loss, out-of-date devices/apps etc. Keywords: Mobile device; malware; cyber security; data loss; applications; BYOD; smartphones; data loss.