There are countless blogs. Money is being made by some people through it and some don't. Most of the bloggers use WordPress at the moment. You need to be sure that your blog is secure.
Finally, installing the secure your wordpress site Scan plugin will check most of this for you, and alert you that you may have missed. Additionally, it will tell you that a user named"admin" exists. That is the user name. You can follow a link and find instructions if you desire. Personally, I think that there is a password enough security that is good, and there have been no attacks on the blogs that I run, because I followed these steps.
It is not unusual for blogs to be hacked by a person. Actually, even entire domains get hacked. If you aren't a programmer or a developer, there is not any way that you will understand anything about programming languages or codes. This is the reason why some of the wikipedia reference men and women who do not know anything wind up if there are some ways thinking.
Yes, you want to do regular backups of your site. I recommend at least a weekly database backup and a monthly "full" backup. More, if at all possible. Definitely more, look what i found if you make additions and changes to your website. If you have a community of people which are in there all the time, or make changes multiple times every day, a backup should be a minimum.
You could get an SSL Encyption Security to your WordPress blogs. The SSL Security makes secure and encrypted communications with your blog. You can also keep history of communication and the all the cookies so that all transactions are recorded. Make sure all your blogs get SSL security for protection from hackers.
However, I recommend that you set up the Login LockDown plugin as opposed to any.htaccess controls. That will stops login requests from being permitted from a for an hour or so after three unsuccessful login attempts. If you accomplish this, you can still access my response your cell while from your workplace, and yet you have protection against hackers.