Skype, the much used voip software that uses a closed protocol, has been hacked. The result of this hack is positive as it will be possible to use the Skype network and protocol from non-Skype software.

Today I received a call through Skype from a friend at a company in China, except he told me he was not using Skype to call me. His company has successfully reverse engineered the Skype protocol and he wanted to call me in the United States to see how it worked between physically distant IP addresses. (Charly Paglee, VoipWikiBlog)

spoke to a Skype spokesman about it :

"We have not had time to evaluate or confirm the story, and so do not yet have any comment."

Skype then sent Michael Arrington a press release :

Skype is aware of the claim made by a small group of Chinese engineers that they have reverse engineered Skype software. We have no evidence to suggest that this is true. Even if it was possible to do this, the software code would lack the feature set and reliability of Skype which is enjoyed by over 100m users today. Moreover, no amount of reverse engineering would threaten Skype's cryptographic security or integrity

I guess this means that it is true and acknowledged by skype.