One thing that changed in the past four years: Politicians, campaign workers and their friends and family members started counting on little USB sticks to securely log in to email accounts and other online services. Google sells these widgets, known as physical security keys, as do smaller companies such as GoTrust, TrustKey and Yubico. Google worked with a nonprofit called Defending Digital Campaigns to give out more than 10,500 kits containing physical security keys, the company said in a blog post on Dec. 9. The Federal Election Commission authorized the nonprofit to distribute cybersecurity products to campaigns for free or discounted prices, meaning campaigns wouldn't have to worry about money if they wanted to boost security. Microsoft also works with the nonprofit.