Fast food connoisseurs should compensate special courtesy here — according to a recent paper by a University of Pennsylvania, Android users have been inadvertently leaving their nine-dot lock patterns in a open, courtesy of their fingers’ oily allegation upon the shade. Specifically, the investigate on intensity “blemish attacks” found that partial or finish patterns could be simply retrieved — even with combined sound on the arrangement or after incidental clothing hit — by regulating assorted lighting and camera course settings for the smear analysis. Should you be surprised? No. But should our phones be getting Froyo sooner for the extra PIN as well as QWERTY password options? Hell yeah.