Bad password habits are far more common than we’d like to admit. Last year, for instance, I bought a used electronic device. But to my dismay, the seller had not taken her 4-digit pass code off one of the crucial functions. Likely, she had originally put up the pass code because she was storing payment information on the device. I tried to contact the seller, but heard nothing. So, I sat down and steeled myself to try every one of the 10,000 possible combinations until I found the one that unlocked that function. But to my surprise (and delight), I got in on my first try.
What was the pass code?