After launching the $10 USB Power Adapter trade-in program last month, and publicly offering the iOS 7 update to all supported Apple devices a couple of days ago, here we are with the news from a Reddit user that the software update is blocking cheap third-party Lightning cables.
Although we have yet to test if this is true, fellow Reddit users joined the discussion and apparently confirmed the report. As noted by 9to5Mac, certified Lighting cables are outfitted with chips to authenticate them. Even with this Apple tech, few report that third-party cables are still working, possibly because the chips on them are cracked.
One Reddit user even suggested a solution or a way around the restriction. This involves turning on the USB power, then plugging in the cable, after which you'll need to unlock the iPhone. It's 10-step workaround, and you can find it on Reddit. I'm not sure if you'd be willing to do the steps each time you charge your iPhone, so it's probably best to get a genuine Lightning cable from Apple.