What does sanitizing refer to in information security?

Sanitizing in information security refers to the process of rendering access to Target Data on media infeasible, which aligns with the concept of securing sensitive information. This is crucial because it ensures that any residual data that could potentially be recovered is effectively eliminated or altered in a way that makes it irretrievable. The aim of sanitizing is to protect sensitive information from unauthorized access, ensuring that when devices are disposed of or repurposed, no confidential data remains.

In contrast, transferring data to a secure server addresses data storage rather than its security at the point of disposal or reuse. Making data readable for the general public contradicts the purpose of protecting sensitive information and would not align with the objectives of sanitization. Encrypting files is an important security measure but primarily focuses on protecting data while it remains in use rather than making it completely inaccessible on the storage medium. Thus, the definition of sanitizing precisely pertains to the process of making data unrecoverable, which is why the correct choice is about rendering access to target data infeasible.