Microsoft Help Desk Phishing Attempt

Roger Grimes | Nov 6, 2025

blog.knowbe4.comhubfsSocial Image RepositoryEvangelist Blog Social GraphicsEvangelists-Roger GrimesI received this email the other day to my personal email account. It is a “Security Alert” from “Microsoft Helpdesk.” Oh, my!

Not only is Microsoft holding five emails headed to me, but my “subscription” is expiring on the same day.

KnowBe4 Blog - Microsoft Helpdesk Phish (1)

The “Unsubscribe” link was just a graphic, no URL. The URL to the main button, “Review All Held Messages results” was linked to the following path (shown below):

KnowBe4 Blog - Microsoft Helpdesk Phish (2)
That is clearly not Microsoft or microsoft.com. I clicked on it. It took me to:
KnowBe4 Blog - Microsoft Helpdesk Phish (3)I immediately got what looked like a legitimate CAPTCHA message: 

KnowBe4 Blog - Microsoft Helpdesk Phish (4)

I am not sure if it was “real” or not, but I answered it. This led to another fake “CAPTCHA” check:

KnowBe4 Blog - Microsoft Helpdesk Phish (5)

I am not sure why I am getting this second CAPTCHA check, but it was the first time a phish has asked me to prove that I was human. Some of the programming code seemed to be exploring if I was fully patched, but it was changed faster than I could get a copy of it, and I was not shown it again when I visited the website again. 

Answering the second (fake) CAPTCHA took me to this link:

KnowBe4 Blog - Microsoft Helpdesk Phish (6)

This took me to the standard fake O365 login to get my 0365 credentials:

KnowBe4 Blog - Microsoft Helpdesk Phish (7)

Ultimately, this phishing attempt was mostly to steal 0365 credentials, one of the most popular phishing scams in existence.

I decided to write about this to share what happens with a large percentage of phishing emails, but also, whatever phishing list I am on, they appear to know that my private email domain is handled by Microsoft 0365 (or it could have been a random phishing connection). 

I get so many fake 0365 login phishing emails to my personal account that I must be on some phishing list that sells or lists this particular attribute, but I am just speculating.  

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