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Duo Security. (July 16, 2019). Share of out-of-date devices in North America and Western Europe in 2018 and 2019, by operating system [Graph]. In Statista. Retrieved March 02, 2021, from https://www.statista.com/statistics/881204/share-out-of-date-devices-by-operating-system/
Duo Security. "Share of out-of-date devices in North America and Western Europe in 2018 and 2019, by operating system." Chart. July 16, 2019. Statista. Accessed March 02, 2021. https://www.statista.com/statistics/881204/share-out-of-date-devices-by-operating-system/
Duo Security. (2019). Share of out-of-date devices in North America and Western Europe in 2018 and 2019, by operating system. Statista. Statista Inc.. Accessed: March 02, 2021. https://www.statista.com/statistics/881204/share-out-of-date-devices-by-operating-system/
Duo Security. "Share of Out-of-date Devices in North America and Western Europe in 2018 and 2019, by Operating System." Statista, Statista Inc., 16 Jul 2019, https://www.statista.com/statistics/881204/share-out-of-date-devices-by-operating-system/
Duo Security, Share of out-of-date devices in North America and Western Europe in 2018 and 2019, by operating system Statista, https://www.statista.com/statistics/881204/share-out-of-date-devices-by-operating-system/ (last visited March 02, 2021)
