Australia recorded the highest number of data breach reports last year since monitoring began in 2018. The latest Notifiable Data Breaches Report found 69 per cent of those data breaches were due to malicious or criminal attacks, with 29 per cent derived from human error. Most personal information in the breaches was contact information, identity data, or financial or health information, which hackers could use to blackmail companies or impersonate individuals. Professor Toby Murray, from the School of Computing and Information Systems at the University of Melbourne, has advice for how to protect yourself from data breaches.