Right now this computer (a laptop) has TurboTax installed and it was last updated yesterday. I worked on one return yesterday that we are also trying to complete for year end tax planning and the return files are saved to a thumb drive temporarily. Once I have the documentation ready for a real return there will be 2 thumb drives in my machine and each 'save' will be sent to each thumb drive. Once a return is completed it will be emailed to the taxpayer for checking before it is e-filed. Once the okay (with any changes needed) is given, the actual .tax2016 file will be emailed to the taxpayer along with the pdf of what was actually filed and the pdf of all forms for them to preserve in case they want to do their own return next year or take it somewhere to be done or some disaster befalls my computer/backups. Those same files are saved, with all documentation, to a thumb drive that has nothing but 2016 returns and dropped in the safe, they will be saved to my desktop machine and backed up to the external drive that is kept in my safety deposit box. Data loss is a terrible thing, data being compromised by hacking is almost as bad. At no time will the data be saved to a laptop because those can 'grow legs' and walk away. No intelligent thief would steal my by now ancient desktop which was upgraded to Win XP years ago but can upgrade no further (so TurboTax this year will not run on it, but that doesn't stop the machine from being a useful file storage unit).