Airlines, banks, casinos, package deliveries, and emergency services around the world are recovering today from what could be "the largest tech outage in history." the root cause was not a foreign agent but linked back to a software update issued by a u-s based cybersecurity firm called "Crowd Strike." Could this have been avoided?

In London, a mobile phone is stolen every 6 minutes. "If I steal your phone, I'm stealing a thousand dollars," says digital identity expert David Birch. But "If I can get into your bank account, I can steal $100,000. So that's what they really want." So there are important steps to take immediately - including turning off message preview.

"Human beings had a play-based childhood from time immemorial," says author Jonathan Haidt. What caused teen mental health decline is "between 2010 and 2015, phones, screens come sweeping in...The most important thing that parents can do is delay the age at which their child gets immersed in internet culture."