You might have seen that crackers/hackers writing the words in a different way, i.e., 0 for O, 1 for I, 3 for E, 8 for B etc. and also using special characters for English alphabets. Have you seen Google homepage in that way? Take a look at this Google’s Homepage. While going through a forum, I found this in a member’s signature and bookmarked it.
K O O L …!