Google Angorithm update expected soon
This current update will be targeting Black Hat SEO.
For the last few months, cyber criminals were using blackhat seo techniques to manipulate the search rankings with spammy pages and getting them on top of results.
They were using google trends to find the buzz keywords, then creating enough links, spammy pages and other black hat techniques.
You should only worry if you have implemented any blackhat seo techniques on your website, otherwise you have nothing to fear.