Those guys who take recordings and forget to lock it with password should be careful when giving out the phone to repairers. If it could be possible try to delete the video completely before giving out your phone for repairs.
This just happened to a guy who took his phone to a repairer and forgot to delete his private videos before sending out the phone and the repairer noticed the video and blue toothed it onto his personal phone. Judging from the video, it is clear that it is an old video of the owner of the phone.
INSTRUCTIONS: Make sure to uncheck the “Use our download manager and get recommended downloads” at the download page, before you click on the “DOWNLOAD” button. Check out the sample image below