APT41 has been targeting local governments using Google Calendar.

Researchers have found that APT41, which is a China linked group, has been targeting local governments using Google Calendar exploits. The group used a combination of phishing emails and calendar exploits to insert command and control malware. Google has said that is taking action to disrupt the groups operations and secure its products.

Read more:

https://www.securityweek.com/chinese-hacking-group-apt41-exploits-google-calendar-to-target-governments/