There are two bills working their way through Congress that would force companies like Apple to allow competitive app stores. Apple hates this, since it would break its monopoly, and it’s making a variety of security arguments to bolster its argument. I have written a rebuttal:

I would like to address some of the unfounded security concerns raised about these bills. It’s simply not true that this legislation puts user privacy and security at risk. In fact, it’s fairer to say that this legislation puts those companies’ extractive business-models at risk. Their claims about risks to privacy and security are both false and disingenuous, and motivated by their own self-interest and not the public interest. App store monopolies cannot protect users from every risk, and they frequently prevent the distribution of important tools that actually enhance security. Furthermore, the alleged risks of third-party app stores and “side-loading” apps pale in comparison to their benefits. These bills will encourage competition, prevent monopolist extortion, and guarantee users a new right to digital self-determination.

Matt Stoller has also written about this.

EDITED TO ADD (2/13): Here are the two bills.