Don’t import products if it contains the sensitive words

I want the importer NOT import products that have a word/words (sensitive) in their titles (here, in my case, is pharmacy products).

Example, if I don’t want the importer to import the products which have “internet security” in title, how can I do that ?

PS. I tried to find codes to hide Woo products which have sensitive words in its title, however, it is unsuccessful. So I think about working on importers to get rid of these products.