Vine, the app known for its six-second videos, introduced a way for users to privately send those videos and texts to friends. Its just one in a swath of series in the tech world shifting even more to private communication. Indeed, the private messaging feature comes about a month after Vine officially banned pornography from its system. As Gizmodo notes, this seems like a good way to bring sexting and its close adherents over to the video app for racy, looping videos. The deal solidifies the growing move in the tech industry to focus on private messaging as the future of communication. Vine is owned by Twitter, which itself introduced photo direct messaging late last year. And consider also Facebooks $16 billion purchase of messaging service WhatsApp, the continued rise of Snapchat, and the introduction of Instagram Direct.