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Data breaches → Netshoes

Was your data in the Netshoes breach?

2017 · netshoes.com.br · ~499,836 accounts exposedHigh severity · 7/10

Netshoes (netshoes.com.br) suffered a data breach in 2017 that exposed around 499,836 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 December 2017, the online Brazilian retailer known as Netshoes had half a million records allegedly hacked from their system posted publicly. The company was contacted by local Brazilian media outlet Tecmundo and subsequently advised that no indications have been identified of an invasion of the company's systems. However, Netshoes' own systems successfully confirm the presence of matching identifiers and email addresses from the data set, indicating a high likelihood that the data originated from them.

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 Netshoes breach exposed and what each item actually enables:

Dates of birth

Date of birth is a permanent identifier used to verify identity by phone. Combined with a name and address it is often enough to impersonate you.

Names and usernames

Links this leak to your other accounts — a reused username lets anyone build a profile of you across platforms.

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.

Also listed in this breach: Dates of birth, Email addresses, Names, Purchases.

What to do if you were affected

These steps are ordered for this specific breach — the most urgent action given what leaked comes first.

  1. Dates of birth: Never confirm your date of birth to an inbound caller — hang up and dial the organisation back on a published number.
  2. Names and usernames: Search your usual username to see what else it exposes, and use distinct handles for sensitive accounts.
  3. Email addresses: Treat any message referencing this service with suspicion, and never act on links in unexpected emails.
  4. 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 9 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.

Check if your email was exposed.Nullivo's free scan checks your own verified email against known breaches — including Netshoes — in 30 seconds. No password, no signup, and we only ever scan your own email. Run your free scan →

Frequently asked questions

What data was exposed in the Netshoes breach?

The Netshoes breach exposed dates of birth, names and usernames, email addresses. Date of birth is a permanent identifier used to verify identity by phone. Combined with a name and address it is often enough to impersonate you.

How many people were affected by the Netshoes breach?

Around 499,836 accounts were exposed, making it a mid-sized breach.

What should I do if I had a Netshoes account?

Never confirm your date of birth to an inbound caller — hang up and dial the organisation back on a published number. 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 Netshoes breach affected you, these breaches exposed comparable information — worth checking too, since leaked datasets are routinely combined.

See all breaches we cover →