Two totally unrelated questions-Fur elise and Hackers?

Question

What does Fur Elise mean, and who wrote it?

And how do hackers hack into passwords? i mean, some people have passwords that are really tough to hack and yet people get in. how do they do that?? (don't worry, i'm not trying to hack into someone's email, i'm just wondering how they can possibly break a code or pass)

Answer 1

Für Elise means "For Elise", a dedication.

Tough passwords can be hacked via keyloggers (program that records a user's keystrokes, including passwords), "sniffing" them (eavesdropping a network and capturing passwords as they are sent), and of course, in some cases, by looking at a person typing the password really closely.

Of course if some system is secured with strong passwords, it might be possible to hack into it by other means, using software faults, configuration mistakes, etc.

Answer 2

Hackers get into the application without knowing those Strong passwords. All they need to know is the valid username in most cases.

Valid usernames can be obtained by brute force or social engineering techniques.

Most of the time authentication/login is bypassed with SQL INJECTION technique. I will give an example of sql injection which can be used to break in or bypass.

When you enter the "username" and "password", the application will send this information to Database and query the information and get back pass or fail.

Lets take the test username/password

Username: James
Password: Chicago

Real query looks like

Select * from tblUsers
WHERE Username = 'James' AND Password = 'Chicago'

Now we can bypass this query by typing in WRONG password and adding boolean condition like this.

Break In Situation:

Username: James
Password: xyz' OR 1=1 -- (Wrong Password)

The Logic lies in [xyz' OR 1=1 --]. (Entire text in square brackets)

Break in query looks like this

Select * from tblUsers
WHERE Username = 'James' AND Password = 'xyz' OR 1=1 -- '

In the above query, you have "OR" & "1=1" condition which always return "TRUE". The above query will always return the "pass" value to the application. This way a user can bypass the authentication.

This SQL INJECTION technique is widely used to bypass the authentication and authorization.

You can get more security related information at http://www.webinfosec.com

Answer 3

As a security analyst, I use a variety systems to test security. But the best ways into systems are only known by the best and the brightest (i.e. not me).

Here are some of the most popular ways:

Brute force password cracking, "replay" attacks, key loggers, SQL Injection, . . and the list goes on and on and on.

Answer 4

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