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“Twilio SendGrid” phishing email steals logins - MailGuard

SendGrid August 20, 2025 high impact

Phishing emails impersonating Twilio SendGrid compromise user credentials A phishing campaign is targeting users with fraudulent emails impersonating Twilio SendGrid, attempting to steal login credentials. The attack leverages the trusted SendGrid brand to deceive recipients into providing authentication information. MailGuard has identified and reported this threat, highlighting the risks of credential theft targeting messaging platform users. This incident underscores the importance of email security awareness and the vulnerability of communication service providers to social engineering attacks that exploit brand trust.

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EUM / SES Relevance

Relevant to AWS EUM/SES as this phishing campaign targets a major competitor's messaging platform users, highlighting the importance of email authentication mechanisms (DKIM/SPF/DMARC) and sender reputation management to prevent similar attacks against AWS customers.

Key Takeaways

  • arrow_right_alt Phishing emails impersonating Twilio SendGrid are actively targeting users to steal login credentials
  • arrow_right_alt Attackers leverage the trusted SendGrid brand to increase success rates of credential harvesting
  • arrow_right_alt The campaign represents a significant security threat to messaging platform users and their accounts
  • arrow_right_alt Email security awareness and verification practices are critical defenses against such attacks