Mashable

Disclosed Nov 10, 20201,414,677 accountsUnverified

In approximately mid-2020, Mashable suffered a data breach that subsequently turned up publicly in November 2020. The data included 1.4 million unique email addresses along with names, genders, expired auth tokens, physical locations, links to social media profiles and days and months of birth. The data was provided to HIBP by dehashed.com .

What is known

People affected	1,414,677 (accounts in the leaked data, per Have I Been Pwned)
Disclosed	Nov 10, 2020
Happened	Jun 1, 2020
Attack	Not stated
Data exposed	Credentials and tokensEmailsLocationIP addressesNamesDates of birth
Sector	Tech
Status	Unverified: not yet confirmed by an official notice, a filing or the organization
Check your email	Have I Been Pwned

Sources

Aggregatorhaveibeenpwned.com

Have I Been Pwned: Mashable

Notices filed

Accounts in the dataNov 10, 2020

Have I Been Pwned1,414,677 people

History of this record

Added2026-09-25

First recordedby backfillSource

First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.

Everything about Mashable