---
title: "Here’s what a threat actor can do with your emails without even having a password | DuoCircle"
description: "Here’s what a threat actor can do with your emails without even having a password."
image: "https://www.duocircle.com/images/og-default.png"
canonical: "https://www.duocircle.com/blog/email-security/what-threat-actor-can-do-with-your-emails-without-password/"
---

Quick Answer

An attacker with just your email address (no password) can still cause real damage. They can spoof your address using lookalike domains (vvasher@gmail.com substituting double-v for w), trace your real identity through reverse email lookup tools that pull public records and social profiles, sign you up for unwanted services to spam your inbox or hide a real account compromise notification, harvest details for resale on dark web markets that fuel later phishing or BEC, send phishing attempts impersonating you to your contacts, and use the address as a starting point for credential stuffing against other sites where you reuse passwords. Defend by enabling DMARC at p=reject on your sending domain, using unique passwords with a manager, enabling MFA, and being cautious about where you give out a primary email.

Here’s what a threat actor can do with your emails without even having a password

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![threat actor](https://media.mailhop.org/duocircle/images/2024/07/spf-record-generator-0964.jpg) 

You wonder what can a malicious actor do with your [email and no password](https://www.rd.com/article/what-can-someone-do-with-email-address-without-password/)? Well, **a lot**!

You have to enter your [email addresses](/email-hosting/finding-email-addresses-for-business-professionals/) at many day-to-day places. _**Organizations store them** to send you newsletters, general updates, notifications, medical communications, etc._ So, if an adversary gets their hand on your email address, they can exploit your personal and [financial information](https://www.gadgets360.com/mobiles/news/esim-vulnerabilities-exploited-by-sim-swappers-financial-frauds-report-5244060), contact your family and friends, gather information about your work, etc.

If you aren’t careful, then you can end up jeopardizing a lot. So keep reading to know how you can **save yourself** and the people linked to you.

## Spoof your email address

If an ill-intended person knows your email address, chances are they might **create a similar one** using the [typography technique](https://www.infosecurity-magazine.com/news/madmxshell-exploits-typosquatting/), where there’s just a slight variation that often goes unnoticed by recipients. For example, if your brand’s email address is [washer@gmail.com](mailto:washer@gmail.com), they can [create a spoofed address](https://www.pcmag.com/news/nsa-warns-of-north-korean-hackers-spoofing-emails-from-legit-domains), [vvasher@gmail.com](mailto:vvasher@gmail.com). In this example, they have replaced w (the 23rd letter in the English alphabet series) with double v (the 22nd letter in the English alphabet series). 

[![](https://media.mailhop.org/duocircle/images/2024/07/spf-record-tester-5975.jpg)](https://media.mailhop.org/duocircle/images/2024/07/spf-record-tester-5975.jpg)

## Stalk you

[Threat actors](https://www.techtarget.com/searchsecurity/news/366598834/KnowBe4-catches-North-Korean-hacker-posing-as-IT-employee) (or anyone, for that matter) **can easily trace** your email address to your identity, especially if your name is uncommon. We often give our email addresses for services, forums, security purposes, etc., and they include our real names and sometimes physical addresses as well. 

In some cases, adversaries have used a version of the target’s real name to generate a new username. In this age, we heavily use [social media](/email-security/simple-social-media-security-practices-your-business-should-adopt/) and often share our **personal details and moments**, allowing [malicious people](https://www.scmagazine.com/news/after-2-hacks-cdk-global-warns-customers-of-social-engineering-attacks) to exploit these details against us. 

You may not know, but there is something called an [online ‘reverse email lookup’ tool](https://nubela.co/blog/top-reverse-email-lookup-tools/) that also tells the **actual names of the people** linked to an email address. Some reverse email lookup tools, such as [CocoFinder](https://cocofinder.com/), often give additional information, including phone numbers.

## Expose your personal details

[Cybercriminals](https://edition.cnn.com/2024/07/22/tech/hackers-crowdstrike-outage-scams/index.html) can extract sensitive details and **sell harvested email addresses** on the dark web, enabling other malicious actors to launch further attacks, such as [spam campaigns](https://www.bleepingcomputer.com/news/security/hijacked-subdomains-of-major-brands-used-in-massive-spam-campaign/) or targeted [malware](/resources/malware-and-its-defense-mechanism) distribution. _They can also trick you into paying ransom if they happen to get access to confidential files and encrypt them_. 

## Sign you up for unsolicited and risky subscriptions

Once a bad actor has your email address, they can sign you up for anything from [dating websites](https://crimestoppers-uk.org/keeping-safe/online-safety/internet-dating) to shady product pages and whatnot. This will incur not only financial damage but also reputational and emotional destruction. And let’s not even get started on how it can also **drown you in legal troubles**. 

## General tips to avoid the above situations

- **Don’t reuse the same password** on multiple websites.
- Enable [two-factor authentication](https://www.techtarget.com/searchsecurity/definition/two-factor-authentication).
- **Unsubscribe** unwanted newsletters, [promotional emails](https://www.activecampaign.com/glossary/promotional-email), etc.
- Be selective about who should know your email address. **Avoid sharing it freely** with anyone and everyone.
- Use [dark-web-monitoring services](https://www.techtarget.com/whatis/definition/dark-web-monitoring) to get alerts whenever your information is included in a [data breach](https://www.bbc.com/news/articles/c7224623j73o) or **sold online**.
- _Don’t share personal details on social media, especially when you **let people know when you will be out** of town._

[![Online protection](https://media.mailhop.org/duocircle/images/2024/07/buy-smtp-1.jpg)](https://media.mailhop.org/duocircle/images/2024/07/buy-smtp-1.jpg)

Follow these essential guidelines to enhance your [email security](/content/email-security-services) and **strengthen** your overall [cybersecurity](/).

## Topics

email securityUpdates 

![Brad Slavin](https://media.mailhop.org/dmarcreport/images/team/brad-slavin.jpg) 

Brad Slavin 

General Manager

General Manager at DuoCircle. Product strategy and commercial lead across the email security portfolio.

## Secure your email infrastructure

Protect, authenticate, and deliver. Contact our team to find the right solution.

[Contact Sales](/contact/) [Explore Products](/products/) 

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