---
title: "“EchoSpoofing” — A Massive Phishing Campaign Exploiting Proofpoint’s Email Protection to Dispatch Millions of Perfectly Spoofed Emails"
url: https://daily.dev/posts/echospoofing-a-massive-phishing-campaign-exploiting-proofpoint-s-email-protection-to-dispatch-mi-ed4cgqfcs
source_url: https://medium.com/@guardiosecurity/echospoofing-a-massive-phishing-campaign-exploiting-proofpoints-email-protection-to-dispatch-3dd6b5417db6
type: article
source: "Guardio"
published: 2024-07-29T13:10:11.985Z
updated: 2024-10-05T18:25:07.038Z
tags: ["security", "cloud", "cyber", "phishing"]
reading_time: 19
upvotes: 0
comments: 0
language: en
---

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# “EchoSpoofing” — A Massive Phishing Campaign Exploiting Proofpoint’s Email Protection to Dispatch Millions of Perfectly Spoofed Emails

**[Guardio](https://daily.dev/sources/guardio)** · 19 min read · 0 upvotes · 0 comments

## Summary

Guardio Labs discovered a phishing campaign exploiting Proofpoint’s email protection to send millions of perfectly spoofed emails from major brands like Disney, IBM, and Nike. The attack bypassed security by leveraging authenticated SPF and DKIM signatures, deceiving recipients and stealing sensitive information. The campaign traced back to vulnerabilities in the email relay configuration of Proofpoint's servers and Office365 accounts. Proofpoint and Guardio collaborated to mitigate the issue, emphasizing the need for vigilant and proactive security measures.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://medium.com/@guardiosecurity/echospoofing-a-massive-phishing-campaign-exploiting-proofpoints-email-protection-to-dispatch-3dd6b5417db6>

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---

Tags: [#security](https://daily.dev/tags/security), [#cloud](https://daily.dev/tags/cloud), [#cyber](https://daily.dev/tags/cyber), [#phishing](https://daily.dev/tags/phishing)

[View this post on daily.dev](https://daily.dev/posts/echospoofing-a-massive-phishing-campaign-exploiting-proofpoint-s-email-protection-to-dispatch-mi-ed4cgqfcs)