Find out whether your details are already exposed
Data breaches happen to companies you trust — and your email can end up in a public dump without you ever hearing about it. Add the addresses you own and check them against known breach-exposure data, with a clear next step for anything found. Checks run when you run them, and you can switch on a daily re-check for any address — off unless you ask.
Illustrative preview — a look at the interface.
The problem
When a service you use is breached, the leaked credentials can circulate for months before you find out — often only after someone tries to use them. By then the damage is done. Most people have no early-warning system at all.
How it works
You add the email addresses you care about and run a check. NexGuard compares them against known breach-exposure data and surfaces a clear, ranked finding with a concrete fix — never a vague scare, and never an invented result. We only ever check addresses you tell us to. One thing is not finished: no breach data source is connected yet, so today a check comes back “not checked” rather than a result. That is the honest answer to a lookup that could not run — the alternative, reporting “no breaches found”, would be a clean bill of health nobody earned.
How it works
Breach Exposure Checks, step by step
Exposure
A service you used is breached and credentials leak into known exposure datasets.
Severity
NexGuard rates the alert — critical, medium or informational — by what was exposed.
Finding
You get a plain-language result explaining exactly what was found, and where.
Response
Follow the recommended action — change a password, turn on 2FA — and mark it resolved.
What you’ll get
Built the NexGuard way
Checks you control
Check an address you own against known breach data whenever you want — with the source and the date.
Severity you can act on
Every finding is ranked and paired with a specific next step, so you fix the important things first.
Resolution tracking
Mark findings resolved as you act. Your history shows what you’ve already handled.
Privacy first
Designed to protect, never to snoop
Breach checks only ever run against the addresses you choose to add. NexGuard does not access illegal or unauthorised data sources, and never asks for your actual passwords — it checks exposure against known breach data and tells you what to change.
How NexGuard protects your dataQuestions
Breach Exposure Checks, explained
Where does the breach data come from?
Do you need my passwords?
Which plans include breach checks?
Does NexGuard watch my addresses in the background?
Get early access
Get Breach Exposure Checks with NexGuard
Breach Exposure Checks is part of NexGuard — start on the Free plan with no card, and upgrade only if you want higher limits and the advanced engines.