Bring your own device (BYOD, /ˌbiː waɪ əʊ ˈdiː/)—also called bring your own technology (BYOT), bring your own phone (BYOP), and bring your own personal computer (BYOPC)—refers to being allowed to use one's personally owned device, rather than being required to use an officially provided device. Bring your own device (BYOD, /ˌbiː waɪ əʊ ˈdiː/)—also called bring your own technology (BYOT), bring your own phone (BYOP), and bring your own personal computer (BYOPC)—refers to being allowed to use one's personally owned device, rather than being required to use an officially provided device. There are two major contexts in which this term is used. One is in the mobile phone industry, where it refers to carriers allowing customers to activate their existing phone (or other cellular device) on the network, rather than being forced to buy a new device from the carrier. The other, and the main focus of this article, is in the workplace, where it refers to a policy of permitting employees to bring personally owned devices (laptops, tablets, smartphones, etc.) to work, and to use those devices to access privileged company information and applications. This phenomenon is commonly referred to as IT consumerization. BYOD is making significant inroads in the business world, with about 75% of employees in high-growth markets such as Brazil and Russia and 44% in developed markets already using their own technology at work. Surveys have indicated that businesses are unable to stop employees from bringing personal devices into the workplace. Research is divided on benefits. One survey shows around 95% of employees stating they use at least one personal device for work. The term was initially used by a VoIP service provider BroadVoice in 2004 (initially for AstriCon, but then continued as a core part of the business model) with a service allowing businesses to bring their own device for a more open service provider model. The phrase and the 'BYOD' acronym is a take-off on 'BYOB', a party invitation term first recorded in the 1970s, standing for 'bring your own beer/booze/bottle'. The term BYOD then entered common use in 2009, courtesy of Intel, when it recognized an increasing tendency among its employees to bring their own smartphones, tablets and laptop computers to work and connect them to the corporate network. However, it took until early 2011 before the term achieved prominence, when IT services provider Unisys and software vendor Citrix Systems started to share their perceptions of this emergent trend. BYOD has been characterized as a feature of the 'consumer enterprise' in which enterprises blend with consumers. This is a role reversal in that businesses used to be the driving force behind consumer technology innovations and trends. In 2012, the U.S. Equal Employment Opportunity Commission adopted a BYOD policy, but many employees continued to use their government-issued BlackBerrys because of concerns about billing, and the lack of alternative devices. The proliferation of devices such as tablets and smartphones, now used by many people in their daily lives, has led to a number of companies, such as IBM, to allow employees to bring their own devices to work, due to perceived productivity gains and cost savings. The idea was initially rejected because of security concerns but more and more companies are now looking to incorporate BYOD policies; 95% of respondents to a survey by Cisco said they either already supported BYOD or were considering it.