Calendly — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
16
occurrences
First Seen
December 2, 2025
Last Seen
July 25, 2026

Calendly is a widely used scheduling platform that lets users share availability to book meetings.

Overview

Calendly is a widely used scheduling platform that lets users share availability to book meetings. In cybersecurity, threat actors are abusing Calendly invites to deliver phishing messages, harvest credentials, and potentially hijack advertising or other linked accounts, highlighting the risk of calendar-based links and brand impersonation in threat campaigns.

Related Threat Clusters

Recent Intelligence Reports

  • BlueNoroff builds Zoom phishing kit with ChatGPT-made faces — Aiweekly.Co · July 25, 2026
  • Phishers Gain Persistence at EU, Asia Hospitality Orgs — Darkreading · June 30, 2026
  • Hotel Phishing Clears All Email Security Filters: Microsoft Names New Attack Class — Travelerstoday · June 27, 2026
  • Hotel Phishing Attack Uses Calendly to Bypass Email Authentication Filters — Techtimes · June 26, 2026
  • Analysis of Suspicious Emails Targeting the Hotel Industry — Socprime · June 12, 2026
  • SOC Prime: Detect Lazarus Attacks Using Three New RATs — socprime.com · May 26, 2026
  • North Korea's Lazarus Group deploys fileless RemotePE trojan, targeting crypto and banks — Bitget · May 25, 2026
  • North Korea's Lazarus Group deploys fileless RemotePE trojan, targeting crypto and banks — Cryptopolitan · May 25, 2026

CVSS v3.1 Breakdown