Yesterday, the Associated Press's Twitter account was hacked. Fake tweets from the account reported that two explosions went off at the White House. The AP and other news outlets were quick to say those tweets were false.

While we don't know exactly how hackers got into the account, there is one big take away: the AP probably needed a better password.

They're not alone. A recent study showed that the 10,000 most common passwords would have accessed 98 percent of all accounts. It also showed that almost a third of users who had been hacked didn't even realize it.

Joining us to help you build a better password is Nicole Perlroth, technology and cybersecurity reporter for the New York Times.