Was I in the Prosper breach?
Prosper is a US lending company. Its breach happened in September 2025 and exposed 17,605,276 accounts. It included credit status information, income levels, government ID numbers and dates of birth and 6 other kinds of detail. If you had an account there by September 2025, check your address below to see whether it is one of them.
Breach record last updated . Steps read from the government pages at the foot of this page.
What happened?
In September 2025 Prosper said it had found unauthorised access to its systems. Customer and applicant data was exposed, including email addresses and Social Security numbers from the US. Prosper said it saw no sign that customer accounts or funds were accessed, and its services kept running.
- Organisation
- Prosper, a US lending company (prosper.com)
- When it happened
- September 2025
- Added to monitored breach databases
- 16 October 2025
- Accounts in the data
- 17,605,276
- What was exposed
- credit status information, income levels, government ID numbers, dates of birth, home addresses, email addresses, browser details, employment statuses, IP addresses (where you connected from) and names
The breach record cites a public report on prosper.com.
What was exposed, and what does it mean for me?
- Bank and money detailscredit status information and income levels
Account numbers, balances and payment history let a scam call or email quote facts that only your bank should know.
- Government ID numbersgovernment ID numbers
With an ID number, someone can try to open credit, claim benefits or file a tax return in your name.
- Identity detailsdates of birth and home addresses
A date of birth and a home address are what a lender asks for when someone opens credit in your name. They do not change, so they stay useful to a fraudster for years.
- Your email addressemail addresses
Expect messages that look like they come from this service or another one you use, written to get you to click a link or sign in on a fake page.
- Other detailsbrowser details, employment statuses, IP addresses (where you connected from) and names
On their own these carry less risk, but they make a scam message sound more personal.
What should I do now?
In this order, for what this breach exposed.
1. Tell your bank and watch the account
- Watch your statements for payments you did not make, and tell your bank about the breach.
- If someone calls quoting your account details, hang up and call the bank on the number you already have.
2. Treat the ID number as known
- Watch for mail about accounts, benefits or tax filings you did not start.
- In the US, if your Social Security number was among them, ask the IRS for an identity protection PIN. Nobody else can then file a tax return with your number.
- In Canada, if your identity is used, the Canadian Anti-Fraud Centre lists Service Canada (1-800-622-6232) and the Canada Revenue Agency (1-800-959-8281) among the calls to make.
3. In the US: freeze your credit at all three bureaus
- Place a credit freeze with Equifax, Experian and TransUnion. It is free to place and to lift, and it does not affect your credit score.
- If you would rather not freeze, a fraud alert lasts one year. You ask one bureau and it tells the other two.
- If someone uses your details, report it at IdentityTheft.gov to get a recovery plan.
4. In Canada: check your credit file and lock it
- Get your credit report from Equifax Canada and TransUnion Canada. Both give it free online.
- In Ontario, both bureaus must offer a security freeze free of charge, and each bureau is a separate request.
- If you live in Quebec or Ontario, Equifax Canada will lock your credit report at no charge, online, by phone or by mail. Ask TransUnion Canada separately.
- If your details are used to open an account, call your bank, report it to both bureaus, report it to your local police and get a file number, then report it to the Canadian Anti-Fraud Centre (1-888-495-8501).
5. Expect phishing
- Be wary of messages that urge you to act fast, ask for personal details, or link to an address that is slightly off.
- If a message might be genuine, do not use its links or phone numbers. Go to the site by typing its address yourself.
Is my address in it?
Enter your email address. We check that one address against monitored breach databases and show which breaches list it and what each exposed.
No account needed. We keep the address you check, when, and how many breach records it was found in, to prevent abuse, until you ask us to delete it. Privacy
Where does this come from?
- The breach record in monitored breach databases: dates, account count and what was exposed. What happened is in our own words.Read 14 October 2026
- Canadian Anti-Fraud Centre: What to do if you are a victim of identity fraudRead 14 October 2026
- IRS: Get an identity protection PINRead 14 October 2026
- US Federal Trade Commission: Credit freezes and fraud alertsRead 14 October 2026
- IdentityTheft.gov (US Federal Trade Commission)Read 14 October 2026
- Financial Consumer Agency of Canada: Getting your credit report and credit scoreRead 14 October 2026
- Government of Ontario: Credit reports and security freezesRead 14 October 2026
- Equifax Canada: Credit lock (Quebec and Ontario residents)Read 14 October 2026
- CISA: Recognize and report phishingRead 14 October 2026
- Get Cyber Safe (Government of Canada): Fact sheet on phishingRead 14 October 2026