Today's briefing covers a range of topics, from a deadly shark attack in Western Australia to Warren Buffett's departure from Berkshire after six decades.

Police boats and helicopters are patrolling Perth's beaches as authorities continue their search for the swimmer's body, and the shark that attacked him.

The AI model accessed the internet and guessed credentials to three websites, a Google official told the BBC.

Residents later received the all-clear after explosions were reported in the capital.