From its annual compilation of 3.3 million passwords leaked online, SplashData has pulled the most common -- and therefore least secure -- not-so-secret codes.
Here are top 20 worst passwords based on Splashdata's rankings of the worst passwords of 2015.
iStock / MartiSaiz
Andrew H. Walker/Getty Images
Adele.com via CNN
National Nuclear Security Administration
Christine Fowler Binder/Facebook
Sign up for Breaking News, Daily Headlines, Severe Weather Alerts & more!