The German financial regulator BaFin has added four problematic subjects to its black list.
The first warning concerns the crypto project Platincoin. The offer says you will be able to make money by minting new platincoins, meanwhile the presentation claims that this project was approved by the BaFin. However, it is not true, the regulator has not approved it in any way.
The other three warnings concern notoriously problematic brokers Toroption (binary options), FXC Markets (Forex) and KayaFX (Forex).
Neither of these brokers is regulated, they have no authorization to provide investment services or advice.
For trading use regulated brokers.