To solve that, Australias using transmitters attached to some 320 sharks, and Twitter, to warn beach-goers when big sharks are near. The systems designed to alert swimmers before they get in the water, as well as lifeguards and other beach patrols. The program sends messages from the Surf Life Saving Western Australias Twitter account, and includes information about the sharks, reports Sky News. The western portion of Australia has been home to numerous shark attacks over the past decade, an issue that became more heated following the death of surfer Chris Boyd earlier this year.