Hi all! On SecurityLab.ru forum an exploit code was published by an anonymous user. Reportedly it must have caused Skype massive disconnections today. The PoC uses standard Skype client to call to a specific number. This call causes denial of service of current Skype server and forces Skype to reconnect to another server. The new server also "freezes" and so on ... the entire network. Liks: http://www.securitylab.ru/news/301422.php PoC: http://en.securitylab.ru/poc/301420.php Best regards, Valery Marchuk www.SecurityLab.ru