The "hacked" warning is Google is a generic warning almost always related to spam. Things like black market pharma, essay writing, knockoff sports jerseys and the like. I'm not entirely certain why t_d would be flagged unless they've recently had an issue with spam/bot accounts posting spam links all over the place. The warning usually takes a few weeks to clear up because Google needs to reindex the website after a reconsideration request has been put through to Google.

If the site was distributing malware it would say "this site might harm your computer" and that is a much more severe warning.