As Apple's Steve Jobs is announcing that they suddenly "want native third-party applications on the iPhone", something its users have been yearning to have ever since they started buying these phones (even if it meant hacking them), Steve justifies their prior resistance to this kind of openness by security threats. As he says, they are "trying to do two diametrically opposed things at once — provide an advanced and open platform to developers while at the same time protect iPhone users from viruses, malware, privacy attacks, etc."