Hi, want to notify you that this popular plugin (All in One SEO Pack) has important security vulnerabilities.
The issues are well documented in the WPTavern for about 3 months, the author and many WP developers are aware of the problem.
If you care about it, follow this link and leave a comment: http://www.wptavern.com/forum/plugins-hacks/1492-all-one-search-engine-optimization-pack-must-suspended.html