The technician should securely wipe the workstation's storage to ensure that any residual sensitive information cannot be recovered. This is essential to protect against data breaches and to comply with privacy regulations governing client transactions. Simply deleting files or formatting the drive does not adequately prevent data recovery, and physically destroying the device, while potentially effective, may not be necessary if the hardware can be repurposed or donated. Secure data wipes provide an appropriate balance between data security and environmental considerations.