calendar security

About this tag
Calendar security on WindowsForum.com covers threats targeting digital calendars, including prompt injection attacks on Gemini-powered assistants that exploit calendar invites to exfiltrate data, and phishing campaigns in Microsoft 365 and Outlook that use deceptive calendar invitations to steal credentials or deploy malware. Discussions also examine vulnerabilities in Microsoft Bookings, where insufficient input validation in APIs allowed attackers to manipulate meeting details and launch advanced phishing or resource exhaustion attacks. These threads highlight the risks of trusting calendar events without verification and provide guidance on detecting and preventing such attacks through improved security settings and user awareness.
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    Calendar Invite Prompt Injection Risks in Gemini Powered Assistants

    Security researchers recently demonstrategyd a novel and troubling way to weaponize Google Calendar invites against Gemini-powered assistants, showing that a seemingly innocuous calendar event can silently trigger prompt injection and exfiltrate private meeting data — all without any clicks or...
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    Beware of Calendar Phishing in Microsoft 365: How to Protect Your Outlook Account

    The growing sophistication of phishing attempts targeting Microsoft 365 and Outlook users underscores a significant challenge facing both individual users and IT administrators: even widely trusted productivity tools are susceptible to well-crafted scam campaigns that can bypass traditional...
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    How to Detect and Prevent Calendar Phishing Attacks in Microsoft 365

    In recent years, cybercriminals have increasingly exploited digital calendars to orchestrate sophisticated phishing attacks, particularly targeting Microsoft 365 users. These scams often involve deceptive calendar invitations that appear legitimate but are designed to steal sensitive information...
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    Microsoft Bookings Vulnerability: How Input Validation Flaws Expose Organizations to Cyberattacks

    A quiet yet consequential security flaw recently put Microsoft 365 customers on high alert after researchers disclosed a vulnerability within Microsoft Bookings that exposed organizations to sophisticated cyberattacks through manipulated meeting invitations and calendar events. At the heart of...
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    Critical Microsoft Bookings Vulnerability Exposes SaaS Appointment Security Risks

    Microsoft’s Bookings tool, a staple in the Microsoft 365 suite for appointment scheduling, has come under scrutiny following the recent disclosure of a critical vulnerability that could allow malicious actors to alter meeting details without proper authorization. This flaw, found within the...
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