Data breaches → Snapchat
Was your data in the Snapchat breach?
2014 · snapchat.com · ~4,609,615 accounts exposedHigh severity · 7/10
Snapchat (snapchat.com) suffered a data breach in 2014 that exposed around 4,609,615 accounts. If you had an account, some of your personal data may be circulating in leaked databases. The fastest way to know is to check your own email — free, in about 30 seconds, no password required.
What happened
In January 2014 just one week after Gibson Security detailed vulnerabilities in the service, Snapchat had 4.6 million usernames and phone number exposed. The attack involved brute force enumeration of a large number of phone numbers against the Snapchat API in what appears to be a response to Snapchat's assertion that such an attack was "theoretical". Consequently, the breach enabled individual usernames (which are often used across other services) to be resolved to phone numbers which users usually wish to keep private.
Breach details sourced from Have I Been Pwned, the industry-standard breach database. Risk analysis by Nullivo.
What was exposed, and why it matters
Not all breaches carry the same risk — what matters is which fields leaked. Here is what the Snapchat breach exposed and what each item actually enables:
Enables SIM-swap attacks (hijacking your number to intercept SMS codes), smishing, and voice scams that appear to come from your bank.
Reveals where you live, work or travel, which supports both targeted scams and physical-safety risks.
Links this leak to your other accounts — a reused username lets anyone build a profile of you across platforms.
What to do if you were affected
These steps are ordered for this specific breach — the most urgent action given what leaked comes first.
- Phone numbers: Move two-factor authentication off SMS to an authenticator app or passkey, and add a port-out PIN with your mobile provider.
- Location data: Review location sharing on the accounts you still hold with this service.
- Names and usernames: Search your usual username to see what else it exposes, and use distinct handles for sensitive accounts.
- Check whether your own email appears in this breach — run a free scan to confirm before you spend time on the steps above.
How urgent is this now?
This breach is over 12 years old. Old credentials still cause harm — leaked passwords from a decade ago are still tried against new accounts every day.
Remember: a breach can't be "un-leaked" — once a database is out, it exists in countless copies. The goal is to make the leaked data useless: change what can be changed, lock down what can't, and remove what has been republished.
Frequently asked questions
What data was exposed in the Snapchat breach?
The Snapchat breach exposed phone numbers, location data, names and usernames. Enables SIM-swap attacks (hijacking your number to intercept SMS codes), smishing, and voice scams that appear to come from your bank.
How many people were affected by the Snapchat breach?
Around 4,609,615 accounts were exposed, making it a large breach.
What should I do if I had a Snapchat account?
Move two-factor authentication off SMS to an authenticator app or passkey, and add a port-out PIN with your mobile provider. You can check whether your own email appears in this breach with a free Nullivo scan — no password required.
Breaches that exposed similar data
If the Snapchat breach affected you, these breaches exposed comparable information — worth checking too, since leaked datasets are routinely combined.
- Was your data in the Gaadi breach? (2015, ~4,261,179 accounts)
- Was your data in the JobStreet breach? (2012, ~3,883,455 accounts)
- Was your data in the Bell (2017 breach) breach? (2017, ~2,231,256 accounts)
- Was your data in the Fling breach? (2011, ~40,767,652 accounts)
- Was your data in the TaiLieu breach? (2019, ~7,327,477 accounts)
- Was your data in the Elance breach? (2009, ~1,291,178 accounts)