Hackers use weaponized calendar invites to exploit vulnerabilities in email systems, tricking users into clicking on malicious links or downloading malware disguised as event attachments.  By leveraging trust in calendar invitations, threat actors increase the likelihood of successful phishing attacks and unauthorized access to sensitive information. Cybersecurity researchers at Malwarebytes recently discovered that hackers are actively exploiting the weaponized calendar invites to install macOS malware.

Source: GBHackers