Better way to make money
I'm playing Watch Dogs and as far as i know, the only way to make money is by doing missions, selling looted items and/or hacking other phones.
Is there a more efficient way to make some money?
The most efficient way to make money is taking the "more money when hacking accounts" skill AND the "highlight good targets" skill which will highlight targets with lots of money (we're talking thousands upon thousands of $$$ here)
Then, you either drive or walk around slowly, best at crowded areas. Targets will be highlighted and you can just focus on them