Hackers alwasys attemiting to access users account and even they using some tools to find an users password. Different types of attacking attemts they took. Study of Imperva (download here) explains, “If a hacker would have used the list of the top 5000 passwords as a dictionary for brute force attack on Rockyou. com users, it would take only one attempt (per account) to guess 0.9% of the users passwords or a rate of one success per 111 attempts. Assuming an attacker with a DSL connection of 55KBPS upload rate and that each attempt is 0.5KB in size, it means that the attacker can have 110 attempts per second. At this rate, a hacker will gain access to one new account every second or just less than 17 minutes to compromise 1000 accounts. And the problem is exponential. After the first wave of attacks, it would only take 116 attempts per account to compromise 5% of the accounts, 683 attempts to compromise 10% of accounts and about 5000 attempts to compromise 20% of accounts. ”

Also, as password “123456″ in rank of 1 out of 20. 12345, 123456789 – respectively. Also, they recommending the users to use numeric, alphabetic and special characters when generating password. Or user can make their own sentence and which will carry the hits of password.

Only 0.2% of users had what would be considered a strong password of eight or more characters that contains a mixture of special characters, numbers and both lower and upper case letters, says the study. — Explains techcrunch

Make your password complex and don’t use any common words from dictionary and from your sorrunoding and make your password long and that was another one big issue.

Depressing Analysis Of RockYou Hacked Passwords [Via TechCrunch]