2021 · Data breach

Twitter (200M)

Breached 1 January 2021 · Published 5 January 2023 · twitter.com

THE HUMAN IMPACT

Behind the exposed accounts

In early 2023, over 200M records scraped from Twitter appeared on a popular hacking forum .

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A phone displaying social media apps on a wooden table
dole777 / Unsplash · Social accounts · context photograph, not incident evidence
211,524,284Accounts exposed
62/100Severe severity
4Types of data
VerifiedBy HIBP

On 1 January 2021, Twitter (200M) was breached. 211,524,284 accounts were exposed, including email addresses, names, social media profiles. MyRecon rates it 62/100, severe. That is roughly everyone in Russia.

FOLLOW THE RECORD

How the story unfolded

Open a step to read the detail. Missing dates stay unknown.

  1. 01Reported breach date

    2021-01-01

    Read the HIBP source record

  2. 02Entry point

    In early 2023, over 200M records scraped from Twitter appeared on a popular hacking forum .

    Read the HIBP source record

  3. 03Discovery and disclosure

    A separate discovery or company-disclosure date is not established by this feed record.

    Read the HIBP source record

  4. 04Added to the breach catalogue

    2023-01-05. This is the catalogue date, not necessarily the disclosure date.

    Read the HIBP source record

  5. 05Reported outcome

    211,524,284 accounts are listed in this breach. This is a count of accounts, not necessarily individual people. The reported exposed data includes Email addresses, Names, Social media profiles, Usernames.

    Read the HIBP source record

Were you part of this breach?

Only a result for this incident is shown. On submission, your email is sent through MyRecon to XposedOrNot for a breach lookup. MyRecon does not save this check to your history. Provider coverage can be incomplete.

This one is dangerous for a reason the account count does not convey. The API that was abused resolved an email address to a profile. The resulting file therefore does something no ordinary credential dump does: it links a pseudonymous handle to a real email address.

For most people that is an annoyance. For anyone whose account was deliberately separated from their identity, someone posting under a pseudonym about a government, an employer, an abusive partner, a religion they left, or a diagnosis, it is the specific harm they built the separation to prevent. The link is not reversible, the file is public, and a password change does nothing about it.

If that applies to you, the useful response is not account hygiene. It is to check which email address the pseudonymous account was registered with, assume the connection is known, and decide whether the account should continue under that identity at all.

The story behind the breach

In early 2023, over 200M records scraped from Twitter appeared on a popular hacking forum . The data was obtained sometime in 2021 by abusing an API that enabled email addresses to be resolved to Twitter profiles. The subsequent results were then composed into a corpus of data containing email addresses alongside public Twitter profile information including names, usernames and follower counts.

Breach description from Have I Been Pwned, used under a CC BY 4.0 licence.

How did it happen?

In early 2023, over 200M records scraped from Twitter appeared on a popular hacking forum .

What was the motive?

The published account does not establish the motive. We cannot tell what the attackers intended from the exposed data alone.

Reported demands or attempts to sell data describe what happened, rather than prove every attacker's intention.

What was the outcome?

211,524,284 accounts are listed in this breach. This is a count of accounts, not necessarily individual people.

The reported exposed data includes Email addresses, Names, Social media profiles, Usernames.

What was exposed, and why it matters

Email addresses

The address becomes a confirmed, active target, expect more phishing, better aimed.

Names

Turns an anonymous address into an identified person, which is what makes targeted phishing possible.

Social media profiles

Adds detail to a profile that can be assembled from several breaches at once.

Usernames

A handle links this account to every other place the same handle is used.

What to do if you were in it

Your next steps

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Questions people ask about this breach

Was my email address in the Twitter (200M) breach?

Use the email box on this page. The result applies only to this incident. If the provider does not cover this breach, we say so. A missing match does not prove you were unaffected.

What data was leaked in the Twitter (200M) breach?

email addresses, names, social media profiles, usernames. Each one is explained above, along with what it means for the person it belongs to.

When did it happen, and when did it become public?

The breach is dated 1 January 2021. It was published to Have I Been Pwned on 5 January 2023, a gap of 735 days during which the data was already out.

Is the Twitter (200M) breach real?

Yes. Have I Been Pwned lists it as verified, meaning the data was checked against the source rather than taken on trust.

How many people were affected?

211,524,284 accounts. That is roughly everyone in Russia. That is accounts rather than people, one person often has several.

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Three kinds of content appear on this page and they are kept apart deliberately. The breach description is quoted from Have I Been Pwned under its licence. The severity score, the field-by-field explanation and the advice are computed from the record itself, every sentence derives from a number or a flag in it, which is what stops the analysis drifting from the evidence. Anything under the "MyRecon's take" byline is editorial: our reading of this breach, presented as opinion rather than as a finding.

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