This has been a known issue for ten years. And he may not even have been targeted per se except as just another virus infection.
Viruses can lead to child porn on your computer
https://www.brownsvilleherald.com/viruses-can-lead-to-child-porn-on-your-computer/article_9c145857-a668-5573-bc04-b80f188d57c9.html
Either way.
Why the hell would you tweet about this?
Bad choice.
Let him do what he demands conservatives to do - prove his innocence.