After those previous problems, we've improved our signature verification scheme.

Social Media Experts Group is still in business! - https://raw.githubusercontent.com/openctf/openctf-2015-dc23/master/challange_downloads/veritable_buzz-d810950dd884cd89d2bcbb7131122e8d.html

[this challenge HTML file references other files, also downloadable from the challange_download directory. The CSS files are not available for download, but are not necessary for the challenge]