Does Defender work with Esperion and Trend Micro?

Question

After entering Microsoft password information, I received popup saying(?) Defender worked with Esperion(?) and Trend Micro(?). Since all three were included, I answered questions--ss and dob. Now I wonder if I have been scammed?

Answer 1

Hi,

Thank you for sharing your question. I understand how alarming it feels to see an unexpected popup mentioning Defender, “Esperion,” and Trend Micro, especially after being asked for your Social Security number and date of birth. It’s completely reasonable to worry you may have been scammed.

Microsoft’s guidance and security advisories make clear that Microsoft Defender does not partner with or require verification alongside third‑party products through pop‑ups, and Microsoft will never ask for personal information like SSN or DOB through a security alert or authentication window. Pop-ups claiming Microsoft “works with” other security companies, especially when asking for personal details, match the behavior of tech‑support scam pop‑ups, which impersonate Microsoft to trick users into giving sensitive information or access. Fake “Windows Defender” pop-up scams are extremely common and are designed to look legitimate, often claiming Defender detected a threat and urging users to take action or provide personal data. These warnings do not come from Microsoft and are typically triggered by malicious ads or compromised sites.

Because the popup asked for sensitive information and referenced companies that do not integrate in the way it claimed, it strongly suggests that this was a scam, and your SSN and DOB may have been exposed to malicious actors. The next steps include securing your Microsoft account, running a malware scan, monitoring your credit, and reporting the incident.

To help you further, may I ask what the popup looked like and whether you clicked any phone numbers, links, or installed anything afterward? I’m here to guide you through the safest next steps.

Sources

 

I hope this helps.

Best Regards,

Noel

Answer 2

The behavior described strongly matches a tech support / identity theft scam, not legitimate Microsoft Defender behavior.

Key points from Microsoft guidance:

1. Microsoft and other legitimate tech companies do not:
   • Pop up random windows telling to call or contact third‑party security companies.
   • Ask for highly sensitive data such as full Social Security number and full date of birth through unexpected pop‑ups.
   • Cold-contact or pressure into providing personal or payment information.
2. Tech support scam indicators include:
   • Sudden pop‑ups claiming security problems and urging immediate action.
   • References to calling or working with “support” organizations that are not clearly Microsoft.
   • Requests for sensitive personal information (SSN, DOB) unrelated to signing in.
3. Legitimate Microsoft security and identity protection:
   • Microsoft Defender and Microsoft’s identity theft monitoring partner with Experian® (a credit bureau), not “Esperion.”
   • When using identity theft or credit monitoring in Microsoft Defender, identity information is entered through the Defender app or Microsoft’s official portals, and Experian stores the data securely. Microsoft explicitly states that it does not see or store identifiable data for this service, and Experian does not share or sell the data.
   • Identity theft monitoring and credit monitoring are set up from the Microsoft Defender dashboard, not from random browser pop‑ups.

Given that:

• The name shown appears to be “Esperion,” which does not match Microsoft’s documented partner Experian®.
• A pop‑up requested SSN and date of birth outside of a clearly documented Microsoft Defender setup flow.

The situation should be treated as likely scam / phishing and potential identity theft risk.

Recommended immediate actions based on Microsoft guidance:

1. Stop interacting with the pop‑up or site
   • Close the browser completely (use ALT+F4 if needed) or restart the computer if the browser cannot be closed.
2. Check the device for malware
   • Ensure Microsoft Defender Antivirus is turned on and up to date.
   • Run a full scan to detect and remove any malicious software that may have been installed.
3. Protect identity and accounts
   • Change passwords for the Microsoft account and any other important accounts, especially if the same or similar passwords are reused.
   • Turn on multi‑factor authentication (MFA) for important accounts.
   • Watch for unusual sign‑ins, password reset emails, or unexpected account activity.
4. Respond to potential identity theft
   • Since SSN and date of birth were provided, monitor financial accounts and credit reports closely for unusual activity.
   • Consider using a legitimate identity theft monitoring solution. Microsoft offers identity theft monitoring in Microsoft Defender (with Experian®) that includes dark web monitoring, credit monitoring, restoration support, and identity theft insurance.
5. Report the scam
   • Microsoft recommends reporting tech support and similar scams via its official reporting channels so they can be investigated and blocked.

If any suspicious charges, new accounts, or credit inquiries appear, contact the bank/creditors immediately and follow local guidance for reporting and recovering from identity theft.

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References:

• Protect yourself from online scams and attacks
• Protecting yourself from identity theft online
• Microsoft security help & learning
• Getting started with identity theft monitoring in Microsoft Defender
• Credit monitoring in Microsoft Defender FAQ
• Getting started with Microsoft Defender
• I think I'm being scammed, but I want to make sure. (Though I may be in the wrong place.) - Microsoft Q&A
• Who do I call for support? - Microsoft Q&A
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• My computer was locked by Microsoft defender, I was asked to call 1-844-452-2441 to get it unblocked. Could somebody confirm that this is a legitimated Microsoft number rather than a scammer? - Microsoft Q&A