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Top Clicked Phishing Email Subjects for Q4 2021


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According to KnowBe4’s latest quarterly report on top clicked phishing email subjects, Business phishing emails remain the highest-clicked category around the world. This category contains regular communication that employees might receive.

The subjects of these emails include fake invoices, purchase orders, requests for information, shared files, and more. Online Services include messages that claim to be from well-known companies and often contain spoofed domains of popular websites within the email copy.

HR-related messages could potentially affect daily work and spoof the users’ own domain with an “HR” mailbox name. The common thread is that the emails convey a sense of urgency and entice users to take action.

In Q4 2021, KnowBe4 examined thousands of email subject lines and categories from simulated phishing tests. The results are below.

Top Phishing Email Subjects:

  1. Password Check Required Immediately
  2. Important: Dress Code Changes
  3. Vacation Policy Update
  4. Important Social Media Policy Change
  5. Employee Discounts on Amazon for your Holiday Shopping

Yeo & Yeo Technology can help train your employees to identify malicious emails with our security awareness training and testing.

Looking to educate your human firewall? Contact Yeo & Yeo Technology.

*Capitalization and spelling are as they were in the phishing test subject line.

**Email subject lines combine both simulated phishing templates created by KnowBe4 for clients and custom tests designed by KnowBe4 customers.

Information used in this article was provided by our partners at KnowBe4.

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