It is the responsibility of the individual or department to securely dispose of their surplus or old laptops and computers.
More information on how to securely erase data is available online:
Note that ETS Client Services will also assist in hard drive destruction for any hard drive in computer equipment that is destined for disposal.
Windows – secure data erase instructions
Mac – secure data erase instructions
Instructions concerning what to do after data has been securely removed:
Recycling Computers and electronic waste