In a major XSS (cross-site scripting) attack this week, Google owned Orkut was flooded with "Bom Sabado" scraps.
The word "Bom Sabado" means "Good Saturday" in Portuguese, which is the also the official language of Brazil, one of the last remaining Orkut bastions in the world.
The worm seems to be posting scraps with the text "Bom Sabado" and also adding affected users to new Orkut groups. Such XSS attacks have targeted Orkut in the past too.
Experts have advised users to avoid logging on to Orkut till Orkut engineers fix the hole and also not to click on any suspicious links. Orkut had just last month announced new updates to the website.
Earlier on Sep 2010, the most popular social networking hub with more than 500 million users, Facebook, also faced networking glitches due to an outside technical problem. It was Facebook's most tragic outrage in its history.