For Wernle, I tried this first on Bank of America. The ruse worked, but there was no customer with Joseph Wernle’s Social Security number. So how about Wells Fargo? A little easier: I didn’t need a code since Danny Yelin, one of the investigators at Teltec, had a friend named Greg who worked there. Because the phone lines were monitored, Danny and Greg had set up their own personal code, which they now shared with me.