This is one of the biggest acquisition made by social networking giant Facebook.
Whatsapp having more than 450 million registered users facilitating from its awesome messaging service without spending service charges.
Facebook acquired Whatsapp for $19bn in cash and shares.
Mark Zuckenberg CEO of facebook has described:
Whatsapp is highly valuable
Mr Koum co-founder of the Whatsapp mentioned:
We’re excited and honoured to partner with Mark and Facebook as we continue to bring our product to more people around the world
This deal will make Mr Koum and co-founder Brian Acton the new billionaires of Silicon valley. The deal was on-going for about 11 days and was completed today.