In Android before security patch level 2018-04-05 on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206, MDM9607, MDM9640, MDM9650, QCA6174A, QCA6574, QCA6574AU, QCA6584, QCA6584AU, QCA9377, QCA9379, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 427, SD 430, SD 435, SD 450, SD 615/16/SD 415, SD 625, SD 650/52, SD 808, SD 810, SD 820, SD 835, SD 845, SDM630, SDM636, SDM660, Snapdragon_High_Med_2016, the original mac spoofing feature does not use the following in probe request frames: (a) randomized sequence numbers and (b) randomized source address for cfg80211 scan, vendor scan and pno scan which may affect user privacy.