The Defense Finance and Accounting Service is implementing changes to myPay, the Web-based pay account management system for all Defense Department uniformed and civilian employees, that will enhance security for users and the department alike. As part of the upgrades, all users will have to select new user names and passwords, DFAS announced Oct. 8. New login identifications can be from six to 129 characters, but cannot be all numbers (in other words, Social Security numbers alone won’t work anymore). Instructions for changing user names and passwords are available on the myPay Web site, https://mypay.dfas.mil/mypay.aspx, or by calling (888) 332-7411 toll-free.