10 Tech Things You Need To Know This Morning

Happy Friday! Here's what's going on in tech:

1. Google is testing smart contact lenses to help people with diabetes. They'll measure glucose levels in tears with a tiny wireless chip the size of glitter and an antenna that's thinner than a strand of hair.
2. For the first time, hackers used a refrigerator to attack businesses. This is being hailed as the first home appliance "botnet" and the first cyberattack from the Internet of Things.
3. Marissa Mayer made her first major mistake at Yahoo, and it cost her $109 million. Mayer hired Enrique De Castro as Yahoo's well-compensated COO when she first joined the company; 15 months later she was forced to fire him. Yahoo's Editor-in-Chief Jai Singh quit the day after De Castro was fired.
4. Ever notice how audio files don't go viral? "Out of the 100 most-shared news articles on Facebook, three were from NPR, but none included audio," writes Digg's Stan Alcorn. Here's his explanation as to why that is.
5. After just a few months at The Wall Street Journal, Farhad Manjoo is heading to The New York Times. He will run its "State of the Art" technology column from San Francisco.
6. The NSA collects almost 200 million text messages every day.
7. Facebook is planning to release a suite of standalone mobile apps in 2014.
8. Twitter is nearing a deal with payments startup App to let you purchase products via tweets.
9. WeHeartIt, a startup that's a lot like Pinterest, has 25 million monthly active users and it serves 50 billion images per month. It's done all of that with just $8 million in funding compared to Pinterest's $338 million.
10. Here are some things founders fear but are too afraid to say out loud.