A month and a half ago, chr13 discovered a way to generate DDoS of any site using Google Spreadsheet , and now he has applied this method in Facebook Notes. And it worked!
The method of operation is exactly the same as in Google Spreadsheet:
Create a note through m.facebook.com. The service will cut the note after a fixed length
Create several such notes under one or several users. Each note will make 1000+ HTTP requests
Open all notes at the same time. The specified server will receive a mountain of HTTP traffic. Thousands of requests will go to the server within a couple of seconds.
The author managed to fully download the gigabit channel on his VPS. The attack involved 127 Facebook servers. ')
Facebook flagged the problem as “Won't fix”.