Data breaches → Roblox
Was your data in the Roblox breach?
2016 · roblox.com · ~52,458 accounts exposedModerate severity · 4/10
Roblox (roblox.com) suffered a data breach in 2016 that exposed around 52,458 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 August 2016, Roblox disclosed a data breach that affected over 50k users. The security incident impacted email and IP addresses, usernames, purchases and Robux balances which were left exposed on a test server.
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 Roblox breach exposed and what each item actually enables:
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: Account balances, Email addresses, IP addresses, Purchases, Usernames.
What to do if you were affected
These steps are ordered for this specific breach — the most urgent action given what leaked comes first.
- 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 10 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 Roblox breach?
The Roblox breach exposed names and usernames, email addresses, ip addresses. Links this leak to your other accounts — a reused username lets anyone build a profile of you across platforms.
How many people were affected by the Roblox breach?
Around 52,458 accounts were exposed, making it a smaller, more targeted breach.
What should I do if I had a Roblox account?
Search your usual username to see what else it exposes, and use distinct handles for sensitive accounts. 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 Roblox breach affected you, these breaches exposed comparable information — worth checking too, since leaked datasets are routinely combined.
- Was your data in the Open CS:GO breach? (2017, ~512,311 accounts)
- Was your data in the Vodafone breach? (2013, ~56,021 accounts)
- Was your data in the ClixSense breach? (2016, ~2,424,784 accounts)
- Was your data in the HTH Studios breach? (2018, ~411,755 accounts)
- Was your data in the BTC-E breach? (2014, ~568,340 accounts)
- Was your data in the Horse Isle breach? (2020, ~27,786 accounts)