After Tax Fraud Spike, Payroll Firm Greenshades Ditches SSN/DOB Logins
Online payroll management firm Greenshades.com is an object lesson in how not to do authentication. Until very recently, the company allowed corporate payroll administrators to access employee payroll data online using nothing more than an employee’s date of birth and Social Security number. That is, until criminals discovered this and began mass-filing fraudulent tax refund requests with the IRS on large swaths of employees at firms that use the company’s services.