Shadow IT refers to the use of technology, software, or applications within an organization that are not approved or sanctioned by the IT department. This can include using personal devices, cloud services, or unauthorized software to perform work-related tasks. While it may provide convenience and efficiency for employees, it can also pose security risks and create challenges for IT departments in managing and securing company data. Shadow IT can also refer to the hidden costs and potential conflicts that arise from the use of unauthorized technology within a company.