The idea of negative SEO is pretty scary, no matter how remote it is. Is it easy for a competitor to ruin your search engine rankings? And if so, how can you protect your site? We can assume the idea behind negative SEO is bad, but what is it?
Basically, negative SEO is a set of activities aimed at lowering a competitor’s rankings in search results. Usually, these activities are typically off-page (such as building unnatural links to the site or scraping and reposting content from the site). Of course, there could even be cases of hacking the site and modifying the content.
It isn’t always the case of negative SEO when your site experiences a sudden drop in ranking, but before you decide that somebody has been hurting your rankings, there are some common reasons for ranking drops. You’ll find a comprehensive list here.
There is a sponsored post on Search Engine Land by SEO PowerSuite that attempts to answer questions like, “is negative SEO real?” and “should you be worried?”