Bluejack: The Peer-to-Peer Messaging Protocol for Bluetooth Devices

Bluejack is a feature that allows you to send a message to someone's Bluetooth device, even if they don't have the same app or service as you. It uses a special protocol that allows devices to communicate with each other directly, without the need for a centralized server or network.

Here are some key things to know about bluejack:

1. It's like a text message, but for Bluetooth devices: Bluejack is similar to a text message, but it's designed specifically for use with Bluetooth devices. Instead of sending a message through a cellular network, bluejack sends messages directly between devices using Bluetooth.
2. It's a peer-to-peer protocol: Bluejack uses a peer-to-peer protocol, which means that there is no centralized server or network required to send and receive messages. This makes it more secure and private than traditional text messaging.
3. It's not just for phones: Bluejack can be used with any device that supports Bluetooth, including smartphones, tablets, laptops, and even smart home devices.
4. It's not limited to messaging: Bluejack can also be used for other types of communication, such as file transfer and voice calls.
5. It's still a relatively new technology: While bluejack has been around for a few years, it's still a relatively new technology, and not all devices or apps support it yet. However, it is gaining popularity and is expected to become more widespread in the future.