If you recieve a comment saying "Hey. I think i saw your picture on this website/blog here CLICK HERE" or:
"Hey. check out this funny blog!! LOL CLICK HERE", don't click on the link
DO NOT click on the link. It will take you to a fake dA login page which will steal your login details if entered.
If you recieve a comment like this, MARK IT AS SPAM using the Mark as spam button on the comment. This will alert moderators to it and will also hide the comment it so others won't be caught out.
if you accidentally clicked on it, make sure you change your password ASAP, and Mark the comment as spam! It would be wise to scan your computer for any viruses as well.
Pass on the message if you can.