Warning, a virus?
I have made a search in Safari address bar. I put marqueting (marketing in catalan language) I have been redirected to a page that says:
(Now I am in Spain and this is my translation of the message, as far as I know:)
WARNING! Mac OS X 10.12.5 is infected with viruses and other malicious applications. Viruses must be removed and damage to the system must be repaired. You need to run the virus removal procedure immediately. ** If you leave this site, your Mac OS X Sierra will remain damaged and vulnerable ** The address is (only the beginning): http://mac-shield.com-secure.download/result/e3fk6/?sourceid=
I suppose that the message itself must be malicious. I post it just to be sure and to help and prevent others. Why it happened just making a search? how to solve it, should just ignore it? How to avoid that in future searches?