Whatsapp and other consumer messaging apps like Facebook Messenger, Telegram, Threema, WeChat and Line are increasingly part of the shadow IT in enterprises, and are often used by employees for business purposes. The main advantage of these messaging apps is, that they are much faster and efficient than email, and lead to improved team communication and higher productivity. On the other hand when used in businesses these consumer messaging apps have significant weaknesses with regard to uses cases, data protection, security, administration, ecosystem integration and support.