Corporate Teams account Blocking access to Home Office 365 Portal

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Occasional Visitor

I have had Home version of office 365 for some time now.

A customer corporation invited me with my e-mail to their corporation Teams channel.

An Ad Hoc account was created by the corporate invite (which is governed by the corporate IT).

My personal account and ad hoc account has the same e-mail as id.

I sign in to my personal e-mail and password.

Instead of getting me to the right space in portal.office.com

it redirects me to the corporate account password query.

 

Is there way to remove the ad hoc account from causing issues?

I can see a HUGE exploit here, if someone malicious targeted home office owners by creating Teams invites and thus blocking everyone from accessing their accounts.

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