Calendar phishing scams are spreading through work invites

Security researchers say attackers are using calendar invitations to deliver phishing lures that can look like normal meeting requests. The invites may impersonate trusted services or a company itself, and they can include malicious links, attachments, or phone numbers that lead victims to scammers. The tactic is growing quickly because calendar systems are widely trusted and the invite can reach users even when email filters catch the message. For businesses, this matters because a single click or call can expose login details, payment access, or even a device to malware. Sender Registry helps companies spot suspicious senders and impersonation attempts before staff interact with them, making it easier to block fake invites, reduce fraud risk, and protect accounts from compromise.