deceptive website warning

[dennis campbell]

hope im in the right place for this .....running sierra and got a big red warning, researched and found that it to be false ....did a virus scan and found there had been 2 false html updates, eliminated them and am looking for a method to prevent in the future
thanks

 

[Taz Mangus]

There are no know Mac OS viruses, there is malware. What do you mean by “false html updates”?