Annoying Malware or adware
I recently renewed my F-Secure (now F-Secure SAFE; before only F-secure antivirus). It had expired. Before I renewed I had already a problem witch I still have. This morning I thought I got rid of the problem. But it is back again: The problem comes up when I want to read articles of newspapers (Volkskrant and NRC). When I click an article a new window opens up with the article. In the text many words are altered in blue and bold and prove to be links to an other site.
If I move my mouse over these bold letters a small text appears:"click to continue > by Deal Top". If I click I get a new window:
There they ask me to fill in my mobile phone number. I do not suppose this is the itention of my newspapers!
Further: in the same article windows in the right down corner I have nasty advertising, witch I can click away sometimes, but on the bottom has the Dutch text: "Gebracht door offerz4U" (= brought by offerz4U).
I work on a MacBook Pro, OS X El Capitan, version 10.11.4.
I hope this is enough information.
And I hope You can help me !!!