The massive Rockyou.com breach reveals the weakness of the password. The Rockyou.com breach provided an opportunity to evaluate the true strength of passwords as a security mechanism. California-based security firm Imperva analyzed the stolen cache of 32 million passwords and the results are not pretty. According to researchers, most passwords are eight or fewer characters and nearly 30% of passwords were six characters or less. They also found Nearly 50% of users used names, slang words, dictionary words, or trivial passwords (consecutive digits, adjacent keyboard keys, and so on), and 20 percent are from a pool of 5,000 passwords. The ten most common passwords used were:
- 123456
- 12345
- 123456789
- Password
- iloveyou
- princess
- rockyou
- 1234567
- 12345678
- abc123
“The problem has changed very little over the past 20 years,” explained Imperva’s CTO Amichai Shulman, referring to a 1990 Unix password study that showed a password selection pattern similar to what consumers select today. “It’s time for everyone to take password security seriously; it’s an important first step in data security. It’s important to point out that, the same password “123456” also topped a similar chart based on a statistical analysis of 10,000 Hotmail passwords published (Link removed at the request of Acunetix) October 2009 by Acunetix (Link removed at the request of Acunetix).
“Everyone needs to understand what the combination of poor passwords means in today’s world of automated cyber attacks: with only minimal effort, a hacker can gain access to one new account every second—or 1000 accounts every 17 minutes,” explained Shulman in a press release.
For enterprises, password insecurity can have serious consequences. “Employees using the same passwords on Facebook that they use in the workplace bring the possibility of compromising enterprise systems with insecure passwords, especially if they are using easy to crack passwords like ‘123456’,” said Shulman.
The rest of the passwords rated by popularity:
Some of the lessons that firms can lead from the Imperva research are:
1) Most users use short passwords which lack a lower-capital-numeric characters mix or trivial dictionary words which every decent brute-forcing/password recovery application can find in a matter of minutes. A hacker will typically take 17 minutes to gain access to 1000 accounts.
2) Strong password algorithms must be coupled with longer passwords that contain a mix of letters, numbers, and, where possible, punctuation.
3) Firms should emulate Twitter’s “banned passwords” list consisting of 370 passwords that are not allowed to be used.
The analysis proves that most people don’t care enough about their own online security to give more than a fleeting thought when choosing the password which secures access to their accounts. This research shows why firms must take proactive actions to manage their users’ choices in passwords.
PASSWORD RELATED SECURITY BEST PRACTICES:
• All passwords are to be treated as sensitive, confidential corporate information.
• Don’t use the same password for corporate accounts and non-corporate accounts (e.g., Facebook, Twitter, personal ISP account, etc.).
• If someone demands a password call someone in the Information Security Department.
• Change passwords at least once every four months.
• Do not use the “Remember Password” feature of applications (e.g., Eudora, Outlook, Netscape Messenger).
• If an account or password is suspected to have been compromised, report the incident and change all passwords.
Strong passwords characteristics:
• At least eight (8) alpha-numeric characters
• At least one numeric character (0-9)
• At least one lower case character (a-z)
• At least one upper case character (A-Z)
• At least one non-alphanumeric character* (~, !, @, #, $, %, ^, &, *, (, ), -, =, +, ?, [, ], {, })
• Are not a word in any language, slang, dialect, jargon, etc.
• Are not based on personal information, names of family, etc.
• Are never written down or stored online.
Password “dont’s”:
• Don’t reveal a password over the phone to ANYONE
• Don’t reveal a password in an email message
• Don’t reveal a password to the boss
• Don’t talk about a password in front of others
• Don’t hint at the format of a password (e.g., “my family name”)
• Don’t reveal a password on questionnaires or security forms
• Don’t share a password with family members
• Don’t reveal a password to co-workers while on vacation
OTHER PASSWORD-RELATED SECURITY BEST PRACTICES:
• Account Lockout: all systems should be set to “lockout” a user after a maximum of 5 incorrect passwords or failed login attempts
• Lockout Threshold: all systems should have a minimum “lockout” time of five (5) minutes
• Password History: systems should be configured to require a password that is different from the last ten (10) passwords
Related articles
- How Upper and Lower Case Letters Changed the World (ryanlanz.com)
Ralph Bach has been in IT long enough to know better and has blogged from his Bach Seat about IT, careers, and anything else that catches his attention since 2005. You can follow him on LinkedIn, Facebook, and Twitter. Email the Bach Seat here.
Brian Krebs at the 
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