If you do not have good protection on your site Documents can easily get lost. Some of those files might be saved on your computer and easily replaceable, but what about the rest of them? If you lose them the first time, where are you going to get them from again? Especially fix hacked wordpress is vital. Often sites have created a number of files and have a good deal of data. Recreating that all are a nightmare, and not something any business owner wants to do.
Do not depend on your internet host - Many men and women rely on their web host to"do all that technical stuff for me", not realizing that sometimes, they do not! Far better to have the responsibility lie with you, instead of out of your control.
Yes, you want to do regular backups of your website. I recommend at least a weekly database backup and a monthly "full" backup. More, if possible. Definitely, if you make additions and changes to your site. If you have a community of people that are in there all the time, or make changes multiple times every day, a backup should be a minimum.
It's time use this person's name and identity and to register for a new Facebook account. Once I get it all set up, I'll be telling you posing as your friend and asking you to be friends with me on Facebook (or Twitter, or additional reading whichever societal site).
You do consider needing security, when your website is new but you do need to protect yourself and your investment. Having a site go down and not being able to restore it can mean a loss of consumers who won't remember to search for your website later and can't find you. Do not let that happen to you. Back up your site as soon as you get it started, as the website is operational, and schedule backups for as long. This way, you'll have WordPress security and peace of mind.