Diaboromon

Diaboromon (Voiced by Paul St. Peter) is an Unknown Digimon created on the Internet. This Digimon is well known in stealing computer data in order to digivolve and become more powerful. Some people, in fact, claim that it's isn't a Digimon at all. In Japan, his name is pronounced Daiblomon. He was defeated when Tai and Matt DNA Digivolved Wargreymon and Metalgarurumon into becoming Omnimon.

Digivolution Gallery
This shows Diaboromon's digivoling process

Trivia

 * Diaboromon name is dervived from the term of Diablo (Spanish for Devil)
 * Diaboromon was created to serve Superimon, but possessed a mind of his own and became a dangerous digimon.