Thankfully, there are fixes. The ImageMagick team is closing the security holes within the next few days, and it's possible to thwart at least some attacks by either verifying the integrity of images or using a policy file to disable the susceptible features. The concerns are that these safeguards won't cover everything, or that website owners won't rush to shore up their defenses. It could be a while before you can assume that your favorite social sites are protected.