What is the most effective way to ensure the secure transfer of ownership for used computing devices within an organization?

1. Data Backup: The first step is to ensure that all important data is backed up. This is crucial because the next steps will involve wiping the device clean.

2. Data Wiping: Use a data destruction program to completely erase all data from the device. This includes not just deleting files, but also clearing caches, deleting cookies and browser history, and removing all software and applications.

3. Verification: Verify that the data has been completely wiped. This can be done using data recovery tools. If the data recovery tool can't find anything, you've done a good job.

4. Documentation: Document the process of data wiping. This includes when it was done, who did it, and what program was used. This is important for accountability and for future reference.

5. Transfer of Ownership: Once the device is clean, it can be transferred to the new owner. This should also be documented, including who the device was transferred to and when.

6. Post-Transfer Checks: Regularly conduct audits and checks to ensure that the device is being used responsibly and that no data from the previous owner is being misused.

Remember, the key to secure transfer of ownership is thorough data wiping and good documentation.