I wonder if this is related to the recent security issues: https://www.nasdaq.com/articles/robinhood-data-breach-leaks-...

Following info from RH site.

Investigating - We’re investigating reports that customers are having trouble logging in to their accounts. We’re working to resolve this issue as soon as possible. Nov 11, 08:08 PST

Clearly they do need that new SRE team they’re hiring for.