Nokia paid millions of euros to a blackmailer to protect an encryption key of the Symbian phones. The extortion took place around the end of the year 2007.
The National Bureau of Investigation confirms that the case is still unsolved.
This is very interesting. Aside from the obvious illegal nature of it all, it's quite a clever crime, and the perpetrators were never caught. This makes me wonder if something similar could happen to the mobile operating systems of today.