Research shows that Australian businesses are no longer being targeted via malicious attachments on email accounts. Instead human language (such as “follow up”, “are you at your desk” etc) is being used and there’s no indication that it’s spam or malicious.

https://www.smh.com.au/business/small-business/this-email-subject-line-could-well-be-a-business-scam-20190321-p5165p.html