This report comes from CNN covering an alleged breach of China's Tianjin supercomputer where 10 petabytes of sensitive data—including defense documents and missile schematics—were stolen. Multiple cybersecurity experts reviewed samples of the leaked data and assessed it as likely authentic, but CNN explicitly states they cannot independently verify the dataset's origins or the hacker's full claims. The breach, if confirmed, would be one of the largest data thefts from China, but the story remains in 'alleged' territory pending more independent verification.