sanitize

Short definition from Wiktionary

Verb

1. 1
   To rid of microorganisms by cleaning or disinfecting.
2. 2
   To make something, such as a dramatic work, more acceptable by removing potentially offensive material.
3. 3
   To filter (text) to ensure it does not contain any characters that will cause problems for or be interpreted in an adverse way by the receiving system.
4. 4
   To remove sensitive or personal data from (a database or file).
5. 5
   To revise (a document) in order to prevent identification of the sources.