The 6’th november the hactivist group anonymous claimed to have hacked into CPR.dk and Atea.dk due to it’s lack of securety. In a message uploaded to pastebin.com Anonymous said that the securiry in both of the firm’s were a joke, and that they could simply not accept that.
They decided that the best way of showing this, would be for them to hack the two companys and gain access to confidential data regarding the CPR register and company information.
The two danish companys acknowledge that they have been hacked, but not that any confidential information regarding CPR’s or other companys’ information have been leaked.
Read more about this here (source in Danish)