What CAN (and SHOULD) you do in Germany?

If you are a German national and are worried about Yatedo abusing your data, you should contact the French Privacy Authority (CNIL - see related articles) and the German Authority.
Here are the details for the German Privacy Authority:

Der Bundesbeauftragte für den Datenschutz und die Informationsfreiheit
Husarenstraße 30 | D-53117 Bonn | Tel.: +49 (0)22899-7799-0
Fax: +49 (0)22899-7799-550
E-Mail: poststelle@bfdi.bund.de 
Internet: http://www.datenschutz.bund.de/

Anybody can contact them to indicate Data Privacy issues and request support. So start writing about your experience with Yatedo and how they are treating your private data.
Also, on their web site http://www.datenschutz.bund.de/ you can access a forum where you can discuss privacy information issues as well as more sources of Privacy information.

Remember: do not subscribe to YATEDO hoping to be able to delete your profile! They are a fraud and are only going to steal more information about you and your friends!

Facebook acknowledges privacy problems, makes you imagine the worst for Yatedo

Monday, the 18th of October 2010, Facebook publicly discussed problems with handling user information. It seems that the company had recently learned that several applications were passing a piece of data known as a user ID to outside companies in a way that violated its privacy policy. User IDs are unique numbers assigned to Facebook members that are used by Facebook and its applications to identify them. The applications on Facebook, including games like FarmVille and Mafia Wars, are transmitting user IDs to third parties. Three of those applications were also transmitting information about a user's friends.

Just imagine than what Yatedo can do with your illegally obtained information. Not only they have saved your profile information without you agreeing on it, but they also can do whatever they want with your information!

Act now against Yatedo's privacy abuse! Write to the French Privacy authority (CNIL) and your national privacy authority describing your problem and experience with Yatedo. They can act against Yatedo now and protect your information!

Do not subscribe to Yatedo and instruct your friends not to subscribe, otherwise your information can still be stolen if linked with them! By not subscribing, you are making sure that, in time, their information becomes obsolete and that Yatedo will be closed by "old age".