u'll get that speeds only with usb 2.0 . for better speeds u need usb 3.0 equipped pc or laptop .....
for password protection , use the wd unlock software bundled with urportable hard drive .. and some portable av for virus protection .
u've made a good choice .. i too use wd. wd essential passport 2.5 usb 3.0 1 TB .
i'm very satisfied with its performance .
its bit glossy ..... but i can live with that
very slim and compact too