While Andel is logging into his email through a browser, the login window disappears. Andel attempts to log in again and is successful. Days later, he goes to log into his email, and his attempt fails. He receives a message indicating that his username and$/$or password are invalid.

What is Andel likely a victim of$?$

Group of answer choices

Keyloggers $($This is not the answer$)$

Spyware

CSRF

RAT