It's getting harder to determine a legitimate comment on your business blog from a spammer--or worse, a hacker--on your website. That's because there are enough generic comments written by spammers to make it seem like they are responsibly interacting with your post. But they're not. When you accept blog comments like these, you could be forfeiting control of your whole website.

So why are spammers and hackers so interested in your business blog?

Well, you see, the number one way to get a lot of traffic to a website is to post on different sites. Having your site linked back to a variety of websites is a major asset for any website.
Firstly, you are increasing your business blog traffic. So if you comment frequently on blogs, more people are likely to notice you and visit your business blog. Secondly, the more people click on your site, the more Search Engines like Google will give you a better ranking. Other websites who "recognise" your site by permitting your link to appear is like Search Engine Code for "this is good, reliable content, people liked it enough to allow a link to it."
So in this way, multiple incoming links doesn't just direct users back to your site, it also helps to qualify your content as "authentic web content."
Spammers/Hackers try to manipulate this rule by getting their links tucked between  crappy content. They're hoping you're reading your comments so fast, you don't notice the damaging link they set up. But their site or content could be coming from an unreliable site, or  worse granting them control of your website. At best, an incoming link from a porn site wouldn't be very good for your professional image.

The #1 thing to remember to deal with why spammers are targeting your business blog

Read all of your blog comments very carefully. If a business blog comment is not clearly from a person who is relating to specific points in your article--don't approve the comment!