Early this morning, I received an email from my.com that my account had been created to consolidate and manage my emails. The problem is that I didn't sign up for any such service. I googled for a couple of minutes, but it was a bit unclear and I wasn't able to gleam much. I was in the middle of a work project so I put it off to deal with later (also thinking it was perhaps some sort of phishing scam).
I worked all day and stupidly closed Outlook as I'm working some large files that bog down my system. About an hour ago, I went to check Instagram and my profile name had been changed as well as the email associated with my account. Instagram indicated and emails had been sent to my email address this afternoon confirming the changes. Somehow, after numerous attempts, I was able to get back into the account from another device. I changed everything back and of course changed the password. While I was doing this, another email came through confirming my registration with Humble Bundle. I clicked through to the link and quickly changed the password so the account couldn't be accessed again.
I run a small business and own my domain. My email is hosted on Bluehost. I logged into Bluehost and changed all of my passwords. I also changed passwords on other social accounts as well as banking.
They obviously had direct access to my email as they were able to delete all of the Instagram notifications as well as the email from this morning from my.com (it's no longer in my inbox or trash - so must have been hard deleted).
But, I was still able to access my Bluehost account - they didn't lock me out. I am not all that tech savvy - so what am I missing? Any advice is appreciated.