Question

_______ is a small text file that some websites use to automatically store information on your hard drive when you visit. spam a keylogger spyware a cookie i dont know yet

Explanation:

The question describes a small text file stored by websites on a user's device during visits. Spam is unsolicited messages; a keylogger records keystrokes; spyware collects data secretly; a cookie is a small text file used by websites to store user information.

Answer:

A cookie