About EmailLeaked
Last updated: June 2026
EmailLeaked is a free, independent data breach checker founded in 2026. It gives everyday internet users a straight answer when they hear about a hack or data breach — no technical knowledge required, no account, no paywall. The site combines instant breach checking with plain-English security guides that explain what exposure means and what to do about it.
What EmailLeaked does
The email breach checker looks up any email address against known breach databases in real time and returns results immediately, showing which incidents the address appeared in, what data was exposed, and what steps to take. The email address is discarded immediately after the check — it is never stored. The password checker uses k-anonymity: the password is hashed locally in the browser using SHA-1, and only the first five characters of that hash are sent to the lookup service, so the full password never leaves the device. Both tools are free and require no account or registration.
Beyond the tools, EmailLeaked maintains a continuously updated database of tracked breach incidents, each with a plain-English summary, a list of exposed data types, and a risk level. The blog publishes practical security guides covering password safety, two-factor authentication, account recovery, and breach response — written for ordinary users, not security professionals.
How the checker works
When a user enters their email address, it is sent to EmailLeaked's API, which checks it against known breach records in real time. The result is returned immediately — showing which breaches the email appeared in, what data was exposed, and what steps to take next. The email address is not stored after the check completes.
The password checker works differently. When a user enters a password, it is converted into a code entirely within the browser. Only the first few characters of that code are sent to the database — the full password never travels anywhere and nothing is stored. This approach, called k-anonymity, means a password can be checked for exposure without ever being transmitted in readable form.
Privacy and data handling
No user account is required to use any tool on EmailLeaked. Emails entered into the checker are not stored after the check completes. Passwords never leave the browser in readable form. Analytics are collected via Google Analytics 4 with explicit user consent only, as described in the privacy policy.
Who is behind EmailLeaked
EmailLeaked is an independent publication launched in 2026. It was founded, built, and is edited by Alamzeb Khan, a software and web developer.
The site started from a specific frustration. Breach-checking tools already existed, but they were built for developers and security professionals — they returned raw records and left ordinary people to work out what any of it meant. Someone who has just read that their email turned up in a leak does not need a data dump. They need to know how bad it is and what to do in the next ten minutes.
Alamzeb built EmailLeaked to answer that question directly. He wrote the breach checker and the site's API layer, and made the privacy decisions that shape how both tools work: email addresses are discarded the moment a check completes rather than logged, and the password checker uses k-anonymity so that a password is hashed in the browser and never transmitted in readable form. Those were deliberate engineering choices, made because a tool that asks people to hand over sensitive data in order to find out whether their sensitive data has leaked is answering the wrong problem.
He also maintains the breach database and writes and edits the site's guides. That includes deciding how each tracked incident is summarised, what risk level it carries, and which exposed data types matter most to a non-technical reader — the judgement calls behind every breach page and every article on the site. Where a topic falls outside what he can verify, EmailLeaked cites its sources so readers can check the claim themselves rather than take it on trust.
What EmailLeaked does not claim: Alamzeb is not a certified security professional, and the site does not present itself as a security research operation. It is a developer-built consumer tool with an editorial layer, and its authority rests on the transparency of its methods rather than on credentials. No company can pay to change a breach result, influence a risk label, or be recommended over the alternatives. The full process is documented in our editorial standards.
Contact
For corrections or source challenges, use the contact form at /contact/. For security disclosures, email security@emailleaked.com. For general questions, email info@emailleaked.com.