Mashable
MEDIUM RISKData breach — June 2020
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.
search Check if you were affected — freeData exposed in this breach
What happened in the Mashable data breach?
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.
The exposed data included 8 types of personal information. Learn more about what a data breach means for you.
Quick answer — was Mashable hacked?
Yes. Mashable was breached in June 2020. The breach exposed 1,414,677 records including auth tokens, email addresses, genders. This breach has been independently verified. If your email was involved, your data may still be at risk today. Check if you were affected.
Why was the Mashable breach so dangerous?
The Mashable breach exposed 1,414,677 records — that is 1.4M people whose personal data is now circulating on the dark web. The combination of auth tokens, email addresses, genders makes this a medium-risk breach that should be addressed promptly.
Don't wait to find out — check if your email was exposed in this breach now.
What data was stolen in the Mashable breach?
Auth tokens — may be combined with other breach data to build a profile for targeted attacks
Email addresses — used for phishing attacks and credential stuffing against your other accounts
Genders — may be combined with other breach data to build a profile for targeted attacks
Geographic locations — may be combined with other breach data to build a profile for targeted attacks
IP addresses — combined with other data, used for identity theft and physical fraud
Names — used to build profiles and target you with personalised scams
Partial dates of birth — used to verify identity for account takeover and fraud
Social media profiles — may be combined with other breach data to build a profile for targeted attacks
Is the Mashable breach still dangerous in 2026?
Yes. Stolen data from the Mashable breach remains dangerous years after the incident. Research shows that over 65% of stolen credentials from older breaches have never been changed by the account holders. Attackers routinely compile data from multiple breaches to build complete profiles, and credentials from 2020 are still actively used in credential stuffing attacks today.
Personal information like email addresses, phone numbers, and dates of birth never expire. Even if you changed your Mashable password, the other exposed data can be combined with information from other breaches to target you. Learn more about how long stolen data stays dangerous.
Frequently asked about the Mashable breach
Approximately 1,414,677 user records were exposed in the Mashable breach in June 2020.
Yes. Leaked credentials are actively used in credential stuffing attacks years after a breach. If you reused your Mashable password elsewhere and haven't changed it, those accounts remain at risk today.
Enter your email in the free checker on EmailLeaked. We scan 12 billion+ breach records including the full Mashable dataset and tell you instantly whether your email was exposed and what data was taken.
Change your Mashable password immediately, change any other account where you used the same password, enable two-factor authentication on all important accounts, and monitor for phishing emails over the next 90 days.
Who was affected by the Mashable breach?
The Mashable data breach affected approximately 1,414,677 users who had accounts with the service. While not the largest breach on record, it still represents a significant number of compromised accounts in our database of 970+ known breaches.
If you ever created an account with Mashable or used their services, your data may have been included in this breach. Check your email now to find out. You can also read our guide on what to do immediately after a data breach.
If your email was in the Mashable breach
Change your Mashable password immediately
Go to Mashable and change your password right now. Use a strong, unique password that you have never used anywhere else.
Change any account sharing that password
If you used the same password on other sites, change it on every one of them. Attackers test stolen credentials on hundreds of popular sites within hours.
Enable two-factor authentication
Turn on 2FA on Mashable and every important account. Even if your password is known, attackers cannot get in without the second factor.
Check your other accounts for this breach
Run a full email check to see every breach your email appears in — not just this one.
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