October is Cyber Security Awareness Month, and while we don't think that cyber awareness is something to cover just once in the year, we think it's a good opportunity to publish some information that can be used all year round.
Awareness Day Twenty: Hardware: Safe disposal 
Awareness Day Twenty: Hardware: Safe disposal

We would also recommend disposing of the organisation's hardware in a safe and secure way to help prevent a cyber attack or a data breach.  Ensure that the disposal company for IT assets has the required certifications.  Once the item has been removed from service in your organisation, reset the device and remove all traces of users and data.  Ensure the information is updated in the asset register.

A professional IT recycling company should be able to provide you with a Certificate of Destruction.  This will ensure that your data is destroyed and cannot be recovered if this is something that cannot be managed within your organisation.

Review: NCSC Aquiring, managing, and disposing of network devices.
Review: ICO Deleting your data from computers, laptops and other devices

More questions like these are in our Information and Cyber Security Checklist (only viewable with a valid Data Protection Education subscription):