Final answer:
It is false that hyperlinks cannot be edited after they have been created; they can be modified to change the URL, text, or other attributes as needed.
Step-by-step explanation:
The statement that once a hyperlink has been created, it cannot be edited is False. Hyperlinks can indeed be edited after they have been created. Editing a hyperlink can involve changing the URL to which it points, altering the text that is displayed on the page, or updating any target attributes that define how the hyperlink opens. This functionality is supported in nearly all document and web page editors.