Jody and Paul Glaser of Los Altos did what millions of Americans still do every year: they wrote a check for their property taxes and dropped it in a blue USPS mailbox outside the post office. Three months later, a delinquency notice arrived from Santa Clara County. Paul said he knew he'd paid — he'd seen the check clear. So they pulled up the check image online and saw someone else's name where the county tax collector's should have been. "Clearly, the check had been altered, and cashed by somebody els ...