Sharing user accounts is not as safe now as it was 15 or 20 years ago. Nowadays, password cracking has become a valuable tool attackers routinely use to gain access to systems and networks, change information, delete data — or get into other potentially harmful cyber-mischief.

Today, businesses implement security solutions that house password vaults to manage, maintain, and reset employees’ accounts. And information security professionals spend a lot time researching new ways of generating and creating unique passwords.

So the next time you see that dreaded “your password will expire in 7 days” message, now you know how important passwords are to maintaining your organization’s security. And if you feel like you’re running out of ideas for strong, unique passwords, check out what researchers have discovered to be the perfect password — that’s also easy to remember.