For those out of the loop, several Lemmy instances such as lemmy.world were hacked.
An update on what happened including steps for mitigation has been posted.
I thought it was worth bringing up seeing as partizle.com has custom emojis and thus vulnerable to the hack.
We deleted our local emojis, per the recommendations.
FWIW, CloudFlare may also have swatted away attacks like this, if its ML detected them well.