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Calendar Crashers: How Sublime Keeps Phish Off Your Schedule

calender
Jan 8, 2026
 - 
Jan 8, 2026
clock
12-1pm ET
Location
Virtual

ICS phishing represents a rapidly growing threat that exploits the calendar integration capabilities of Microsoft 365 and Google Workspace to evade conventional email security solutions.  Attackers leverage trusted calendar applications to deliver malicious invites that land events directly on users' calendars, often persisting even after the originating email is removed. We'll examine the mechanics of these dual payload attacks and show how Sublime mitigates this threat natively.

In this webinar, we'll explore the vulnerabilities that make ICS phishing possible and demonstrate how Sublime Security's next-gen email security platform automatically detects and removes malicious calendar invites not only from the inbox but the calendar application as well. Attendees will learn how Sublime's ICS phishing detection capabilities identify threats embedded in calendar descriptions, links, and attachments, while our automated response actions simultaneously quarantine malicious emails and delete their associated calendar events, eliminating the "calendar residue" problem that plagues traditional security approaches.

What you'll learn:

  • Key aspects of the malicious calendar invite attack vector
  • How Sublime protects your mailbox and your calendar from this threat
  • How you can hunt for threat actor activity in your email environment with Sublime

Who should attend:

Detection engineers, SOC analysts, IR teams, and security practitioners evaluating modern email security approaches.

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Speakers

Josey Coles
Head of Customer Education
Ahry Jeon
Product Manager

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