SearchJacking is best described by Mark Scheafer at BusinessGrow.com;

He defines it as: "When a topic gets hot, the Internet Bad People quickly catch on and capitalize by finding ways to catch the wave with their own spammy offerings. It could have been worse — there were so many posts about the subject that it is pretty saturated with legitimate content but you can see how not protecting yourself as your business grows can provide vulnerabilities to your brand" See his blog post at: https://tinyurl.com/SearchJacking

Mitchell P. Davis, a certified search engine optimization (SEO) professional (Certified by Bruce Clay -- https://www.bruceclay.com/), Has adopted the phase to encompass many kinds of snarkey SEO much of it unethical and some illegal SEO.