OxygenOS version 1.0.2 has just been released to the public. OnePlus has provided the means to flash the update, which is set to address the "Stagefright" vulnerability that could lead to your phone becoming compromised.
OnePlus One owners are advised to back up data before flashing, and those already using OxygenOS will not be required to reset their smartphone. It's positive to see more manufacturers working to get said security vulnerability holes plugged.
Rocking OxygenOS? We highly recommend you take the time to update. More details about installation and flashing can be found over on the OnePlus website.