Stenography

Every one Need to hide something.. Keep some stuffs secret.  We are just learning this for fun, No offense

Steganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message, a form of security through obscurity. The word steganography is of Greek origin and means "concealed writing" from the Greek words steganos(στεγανός) meaning "covered or protected", and graphei (γραφή) meaning "writing". The first recorded use of the term was in 1499 by Johannes Trithemius in his Steganographia, a treatise on cryptography and steganography disguised as a book on magic. Generally, messages will appear to be something else: images, articles, shopping lists, or some other covertext and, classically, the hidden message may be in invisible ink between the visible lines of a private letter.

The advantage of steganography over cryptography alone is that messages do not attract attention to themselves. Plainly visible encrypted messages—no matter how unbreakable—will arouse suspicion, and may in themselves be incriminating in countries where encryption is illegal.^[1] Therefore, whereas cryptography protects the contents of a message, steganography can be said to protect both messages and communicating parties.

Some Interesting Olden people followed are. 

Hidden messages within wax tablets

Hidden messages on messenger's body 

invisible ink.

We have lot of highly sophisticated softwares to Hide datas.But Will see Simple tricks to Make your Datas and Banking password Secret.

1.To Hide a Image behind the Pictures 

Download an attractive image say : PIC.jpg
Open a Text File in the name : Hide.txt

Ok Open CMD and Type the below line

copy/b PIC.jpg+Hide.txt  New.jpg

Now you get a new image New.jpg

: Just Be cool : Open The image in Text Editor you will find it in the Bottom of the File..

2. Hiding the Text Behind a Text 

This is a cool one and very use full to hide your important datas like bank passwords

1. Launch Windows command prompt from Start Menu -> Run -> Type cmd and press Enter.
2. Using DOS commands navigate to the desired folder.
3. Now type in notepad VisibleFile.txt:HiddenFile.txt and hit Enter, you can change VisibleFile.txt and HiddenFile.txt to names of your choice (notice the : between both file-names), You will be prompted to Create a New file click Yes as shown below.

4. Now enter data you want to hide, save the file and close notepad.
5. Visit the file-save location, you will see your VisibleFile.txt file (non-hidden) there, you can open the file and enter any text of your choice as any other normal text file.

6. The hidden file HiddenFile.txt will not be visible under Windows Explorer or DOS.
7. To open and read/write your hidden file, type in the command notepad VisibleFile.txt:HiddenFile.txt (change filenames with your own used during Step 3 above) at DOS command prompt and hit Enter.

Do note that if the visible file (VisibleFile.txt) is deleted your hidden file (HiddenFile.txt) will also get deleted.