Hi, I'm using the latest SEO SearchTerms Tagging 2 plugin, I found today that a lot of spam meaningless words have appeared in the recent search terms section.
Those spam words look like this
I got lots of words like above, I tried search them in google but with no results, so apparently those words are not from valid search engine referels.
Could anyone let me know how I can stop this and where do they come from in the first place.
Thank you in advance!