According to a report from ZDNET, fake calendar invitations are on the rise and have become a new vector for malware delivery. These invites are designed to slip past conventional security tools and embed themselves directly into a user's calendar application, making them difficult to spot until it's too late.
The report notes that the attacks are surging, but it also offers practical advice for mitigation. By adjusting calendar settings, being cautious with unexpected invites, and verifying senders, users can reduce the risk of infection. The key is to treat calendar invites with the same suspicion as email attachments from unknown sources.
This is a single-source report, so the findings are not independently corroborated, but the threat it describes aligns with broader trends in social engineering attacks. For businesses, the takeaway is clear: calendar hygiene should be part of any security awareness training.