This kind of issue has become so rampant these days. I dont believe this at first, but some of the exchanges and other online wallets are exposing their customer's email addresses, thats why we're recieving login attempts from different places and it is very alarming already.
No, exchanges and online wallet services aren't exposing people's email addresses. People use one email address for basically everything. In most cases faucets and other trash sites get hacked and their database leaked, so with all that information the hackers try to gain access to exchanges and online wallet services, which is their only objective obviously. With how crypto has increased in value lately these log-in attempts have increased as well.
In other words, use a shitty email account for faucets whatnot, and use new highly secured email accounts for important services. This is common internet etiquette, come on!
Since I was able to passed up bitter experience when it comes to hacked due on having that habit on using up single email on all sorts of accounts either on my game accounts or on investment side which it was exposed and been hacked and it do repeats since my password was also just the same.After scenario I had learned and now that simple etiquette that you mention is what I'm doing now.