I got that annoying message also, when accessing HMEM, over and over, and made (also) a hasty conclusion, that Google has expanded its territory again.
Maybe Google have done so, but it can be avoided by simply disabling "block reported attack sites" (Firefox). It's just a new "gimmick", that has been added to browser(s). Too bad, that none of those warning messages mention, what the user can do to disable that feature, even if it's a trusted site as HMEM.