CoPilot Microsoft Account login shows unknown account

Hi,

I have installed copilot on iphone. While logging in using the 'Microsoft Account', it shows me 4 accounts.

One of them is my personal account and two are my office accounts. But then it shows me a third hotmail.com that I don't recognize at all.

I have cleared any cache from Chrome Safari or Edge. I have also paused and started the syncing of 'Passwords' to iCloud.

But nothing has helped.

Please help. I am sure this falls under the Security and Compliance category and should be seriously looked into.

Thanks,

Chandan