Recently I started a new WordPress blog and didn’t add any forms for user registrations. But I got a email from my site saying that new users was registered. Still I haven’t written any post or didn’t advertise anything. still Im building it. When I check the site users it was as below.
Now my questions are,
1) What kind of attack is this. How did a attacker find my site while im just building it?
2)They are registered as subscribers, am I safe to just delete them?
any guideline from an expert will be highly appreciated. please advice me what should I do? Thanks.