My Yahoo email account has been hacked. I can no longer even access the Yahoo homepage to try and get help or report the problem. Searched internet and found that it has happened to hundreds of others.
I apologise if you have received unwanted messages with dangerous links in them. I can't stop it. As always, don't click on the link, you will end up like me if you do.
Maybe someone will get through to Yahoo and make them sort it out.