When reports of Russian hacking efforts first surfaced last summer, New York University Law School's Brennan Center for Justice issued a report on vulnerabilities of our voting systems, noting that voting machines across the country were outdated, leaving them prone to errors, if not hacking, and that lax procedures left many state or local voter registration systems at risk. The former problem can be solved through greater federal investment in supporting voting machine hardware purchases at the state and local levels. It's a good thing that we have variation in the types and manufacturers of our voting machines because it makes wide-scale manipulation more difficult. But we do need more uniformity in their age and quality. As for registration databases, more needs to be done to ensure that local and state officials follow some basic precautions, for example making frequent paper back-ups of the rolls and employing auditing techniques to flag unusual activity.