Yes. As long as the hard drives are handled correctly and the data is wiped properly it is safe to sell used hard drives. Here at TXO, we handle used hard drives with extreme caution and care at all times, even storing them under surveillance. You can also rest assured that any data remaining on the hard drive is completely erased using our Blancco data erasure software. The Blancco product exceeds the highest security specifications detailed in the HMG Infosec Standard No: 5 – you can download the Blancco certification fact sheet here. By using these methods, we ensure that selling your used HDD with us is completely safe.