Maybe I'll find your email address on your cell phone. Maybe I'll send you a notification from bitcointalk.org (make it look identical), but when you click the link (you don't do you), I'll drop a keylogger and a few other goodies on your PC. Now I go and find your wallet(s), open it, empty it and just for giggles, activate a virus that wipes your PC and disables your cell phone. In the mean time, while your dealing with that, I'll comb your keylogger history looking for passwords, find all the other exchanges where you trade, open your accounts and bleed them dry.
Most of what you are describing in this scenario happens on the PC, not on the phone. Finding an email address on the phone? I'm sure that's possible - but I am also pretty sure hackers prefer to hack into websites and systems that have thousands or millions of email addresses, instead of hacking into just one phone for one email address. And a single virus that wipes both the PC and disables a cell phone? Never heard of that.