Has there been a security breach in iThemes?

Something weird happened today, as all of my websites’ backends went incredibly slow (around 20 seconds to load anything). Also, submitting a form took over 10 seconds to load.

This was not due to server resources, as the slowness also happened on 128GB RAM servers with 32 cores and a lightweight website.

I could pinpoint the issue in iThemes Security Pro, as deactivating this plugin instantly speeded up my websites.

I tried getting support, but the https://members.ithemes.com is not loading, nor is their support page.

Can anyone of the devs check the situation asap?

The page I need help with: [log in to see the link]