Hello,
If you meant secure in terms of who can/can't publish a blog, we do have option to restrict which user group can/can't publish. As for the comment, we do have antispam that you can use when user writing a comment.
By the way, it looks like your account isn’t tied up with any subscriptions on our site. Is there any mistake on our end? Would it be possible for you to contact us at
https://crm.stackideas.com and provide us with the order reference and your username so that we can fix this up for you?