The Account Security page is broken
The only thing it says is "How you sign in". Tried multiple accounts and browsers and clearing cache. I have 3 ideas related to this.
1. Fix It!
2. Use test suites before deployment.
3. Provide easy method to report issues with pages. I could not locate any method to report broken pages and I'm not about to give you $4.99 a month to talk to a live person to report bugs that should be caught during testing.