Data breaches → Dangdang
Was your data in the Dangdang breach?
2011 · dangdang.com · ~4,848,734 accounts exposedLow severity · 2/10
Dangdang (dangdang.com) suffered a data breach in 2011 that exposed around 4,848,734 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 2011, the Chinese e-commerce site Dangdang suffered a data breach. The incident exposed over 4.8 million unique email addresses which were subsequently traded online over the ensuing years.
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 Dangdang breach exposed and what each item actually enables:
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.
What to do if you were affected
These steps are ordered for this specific breach — the most urgent action given what leaked comes first.
- Email addresses: Treat any message referencing this service with suspicion, and never act on links in unexpected emails.
- 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 15 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 Dangdang breach?
The Dangdang breach exposed email addresses. 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.
How many people were affected by the Dangdang breach?
Around 4,848,734 accounts were exposed, making it a large breach.
What should I do if I had a Dangdang account?
Treat any message referencing this service with suspicion, and never act on links in unexpected emails. 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 Dangdang breach affected you, these breaches exposed comparable information — worth checking too, since leaked datasets are routinely combined.
- Was your data in the China Software Developer Network breach? (2011, ~6,414,990 accounts)
- Was your data in the JobStreet breach? (2012, ~3,883,455 accounts)
- Was your data in the Neteller breach? (2010, ~3,619,948 accounts)
- Was your data in the Heroes of Newerth breach? (2012, ~8,089,103 accounts)
- Was your data in the Gamigo breach? (2012, ~8,243,604 accounts)
- Was your data in the QIP breach? (2011, ~26,183,992 accounts)