Data breaches → Roll20
Was your data in the Roll20 breach?
2018 · roll20.net · ~3,994,436 accounts exposedCritical severity · 10/10
Roll20 (roll20.net) suffered a data breach in 2018 that exposed around 3,994,436 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 2018, the tabletop role-playing games website Roll20 suffered a data breach. Almost 4 million customers were impacted by the breach and had email and IP addresses, names, bcrypt hashes of passwords and the last 4 digits of credit cards exposed.
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 Roll20 breach exposed and what each item actually enables:
Direct financial fraud, plus convincing scam calls that quote your real card or account details to establish trust.
Attackers replay leaked passwords across other sites (“credential stuffing”). Because most people reuse passwords, one leak often unlocks email, shopping and banking accounts elsewhere.
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.
What to do if you were affected
These steps are ordered for this specific breach — the most urgent action given what leaked comes first.
- Payment or bank details: Contact your bank, ask them to monitor or reissue the card, and check statements for small “test” transactions.
- Passwords: Change this password everywhere you have reused it, starting with your email account — whoever controls your email can reset everything else.
- 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 8 years old. Old credentials still cause harm — leaked passwords from a decade ago are still tried against new accounts every day.
Passwords are the reason breach age matters less than people expect. Leaked credentials are compiled into wordlists that get tried against new services for years afterwards, so a password exposed here is unsafe to use anywhere, ever again.
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 Roll20 breach?
The Roll20 breach exposed payment or bank details, passwords, names and usernames, email addresses, ip addresses. Direct financial fraud, plus convincing scam calls that quote your real card or account details to establish trust.
How many people were affected by the Roll20 breach?
Around 3,994,436 accounts were exposed, making it a large breach.
What should I do if I had a Roll20 account?
Contact your bank, ask them to monitor or reissue the card, and check statements for small “test” transactions. 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 Roll20 breach affected you, these breaches exposed comparable information — worth checking too, since leaked datasets are routinely combined.
- Was your data in the Bonobos breach? (2020, ~2,811,929 accounts)
- Was your data in the Home Chef breach? (2020, ~8,815,692 accounts)
- Was your data in the PayAsUGym breach? (2016, ~400,260 accounts)
- Was your data in the Eye4Fraud breach? (2023, ~16,000,591 accounts)
- Was your data in the WHMCS breach? (2012, ~134,047 accounts)
- Was your data in the IIMJobs breach? (2018, ~4,216,063 accounts)