The first native mobile virus, Cabir, appeared on the scene in 2004, and it was that worm that helped spread the fear of widespread smartphone viruses. Cabir had no malicious intent, but instead simply tried to find other nearby devices and spread via the then-nascent Bluetooth technology. Attackers wasted no time in taking advantage of that shift, preying on the mobile app model and the coming wave of mobile payments. Apple and Google have been fighting this problem since finding malicious apps and outright malicious apps.
Source: https://threatpost.com/ten-years-later-cabir-worms-place-in-history-is-unique/106679/