Data breaches → Dunzo
Was your data in the Dunzo breach?
2020 · dunzo.com · ~3,465,259 accounts exposedHigh severity · 7/10
Dunzo (dunzo.com) suffered a data breach in 2020 that exposed around 3,465,259 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 approximately June 2019, the Indian delivery service Dunzo suffered a data breach. Exposing 3.5 million unique email addresses, the Dunzo breach also included names, phone numbers and IP addresses which were all broadly distributed online via a hacking forum. The data was provided to HIBP by dehashed.com.
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 Dunzo 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.
Puts you on spam and phishing lists, and confirms to attackers that you hold an account with this service — which makes impersonation emails more believable.
Reveals your approximate location and internet provider, which adds credibility to targeted scams.
Also listed in this breach: Device information, Email addresses, Geographic locations, IP addresses, Names, Phone numbers.
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.
- Email addresses: Treat any message referencing this service with suspicion, and never act on links in unexpected emails.
- IP addresses: No direct action needed, but be wary of anyone quoting your location as “proof” of identity.
- 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 6 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 Dunzo breach?
The Dunzo breach exposed phone numbers, location data, names and usernames, email addresses, ip addresses. 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 Dunzo breach?
Around 3,465,259 accounts were exposed, making it a large breach.
What should I do if I had a Dunzo 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 Dunzo breach affected you, these breaches exposed comparable information — worth checking too, since leaked datasets are routinely combined.
- Was your data in the ai.type breach? (2017, ~20,580,060 accounts)
- Was your data in the Wongnai breach? (2020, ~3,924,454 accounts)
- Was your data in the Drizly breach? (2020, ~2,479,044 accounts)
- Was your data in the Home Chef breach? (2020, ~8,815,692 accounts)
- Was your data in the Wishbone (2020) breach? (2020, ~9,705,172 accounts)
- Was your data in the CyberServe breach? (2021, ~1,107,034 accounts)