Every day hundred of websites/blogs get hacked and have hidden links inserted into the pages by people wanting their spam sites to rank highly in the search engines. Google doesn’t give you a warning when they see lots of links to black hat sites - they just stop sending traffic to the pages that contain them. Because the hackers often hide the links from everybody apart from Google it’s clear that we need to leverage the Google spider to do the work for us.
Matt Cutts has stated that 2008 will be the year hacking and SEO collide.
Google Alerts lets us create advanced search queries to setup an alert to monitor our websites/blogs for any terms that might appear when a hacker takes control.
Next go to Google Alerts and enter the query above into the “Create a Google Alert” box and you will get an email whenever Google spots one of your chosen spam words on your site.