HN Twitter bot locked due to “distribution of hacked material”?

Hello, I run the bot https://twitter.com/hn_frontpage which, as the name suggests, any story that makes it to the homepage gets tweeted out.

Just now got this email from twitter: https://i.imgur.com/YYOZ8Vu.png

No link to the tweet so no idea which story caused it. Tried to log in to see if there is anymore information and all I know is the account is locked for 12 hours.

I've been busy today so haven't been paying attention to HN. Any idea which story could have kicked this off?