Leaders need to stay mentally sharp to effectively lead their teams. Here are seven things that truly strong leaders never, ever do.

They don’t mask their insecurities, but instead maintain their humility and acknowledge their mistakes and weaknesses.

By Kevin O’Leary

Shark Tank star and superstar entrepreneur Kevin O’Leary argues in his book Cold Hard Truth On Men, Women & Money that personal finance pretty much comes down to three simple principles: “Spend less, save well, invest often.

Though most successful entrepreneurs are workaholics at heart, it’s important not to sac-rifice all your time outside of work in service of your company. Humans are social crea-tures. Regular connection with our friends and loved ones is a vital part of a healthy life.

Phishing e-mails are bogus messages carefully designed to look like a legitimate message (or attached file) from a site or person you trust. Their goal is getting you to willingly give up your login info or unknowingly click a link to install a virus.

Nick Saban, head football coach at the University of Alabama, has won six national championships, one while he was head coach at LSU and five at Alabama. The five championships at the University of Alabama have happened in a span of only nine years – the biggest run in college football history.

It’s 3 a.m. You and your family are all tucked away in your beds, snoozing away. Suddenly, the doorbell rings, and everyone is shocked awake. Who is that? What do they want? And, most importantly, what should you do?

It’s a dicey situation, but luckily, modern technology has an answer — the August Doorbell Cam Pro.

Though we’re in the midst of an unprecedented rise in high-profile cybercrime incidents, it’s easy to assume that our own much smaller businesses are safe. Sure, we think, hacking into the data stores of J.P. Morgan, the U.S. Government, or Virgin America can net hackers millions and millions of dollars.

By Geoff Smart

Recently, a video podcaster named Nina asked me a simple question with complicated implications: “What’s the most important mindset for success in business?”

At first, I doubted that I’d be able to identify a single mindset that was key to success.

Move over selfie sticks — it’s time to take photo tech to the skies. The new AirSelfie, a pocket-sized camera equipped with four rotating fan propellers that allow it to take flight, aims to revolutionize the way we take pictures. The palm-sized device promises to take 5-megapixel, HD photos from up to 65 feet in the sky, steadied by an antivibration shock absorber that ensures images stay crisp and clear.

Every company has its ups and downs. How your organization deals with those intermittent challenges is just as important as how it celebrates its victories, if not more so. Maybe your quarterly earnings have come in below expectations, or maybe a long-admired senior manager has decided to leave the firm.