That article is just commercial BS ... the same way GSM pretended "Frequency Hopping" is a security feature because you can't listen to everything and don't know where to listen and you can't listen to everything without very $$$ equipement.

If CDMA is more secure (and I'm not saying it is), then it's not due to their modulation scheme ... it would be due to the better security scheme. (and again, I don't know their security scheme, so it may just be as bad as GSM)