Steve Ragan cuts through the FUD with a cleaver:
Control Your Info (CYI), a group that exists to “draw attention to questions concerning online privacy awareness,” performed a few Google searches and discovered several Facebook groups without administrators. Thanks to the nature of the Facebook group system itself, if there is no administrator present, anyone can join and make themselves an administrator. This is what CYI did. They used the Google search, and with the results, managed to make themselves administrators on 289 open groups.
This is not hacking, and the people who do it are not hackers in the criminal sense, or the ethical sense for that matter.
Thank you Mr. Ragan.
The work necessary to protect your online privacy is up to you.