Report financial crime anonymously. Follow your case.
Whistle42 takes tips on fraud, scams, money laundering and compliance failures in finance, payments, crypto and iGaming. You stay anonymous, you get a private case mailbox, and every tip is reviewed by our investigative desk.
- Anonymous by default
- Private two-way case mailbox
- Encrypted storage
- Reviewed by investigative journalists
- R42 rewards for verified tips
How Whistle42 works
Five steps from tip to outcome. You decide what you share and whether you answer our questions. Your tip becomes a case you can follow, without ever telling us who you are.
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Submit your tip
Tell us who is involved, what happened and how you know. Attach documents, screenshots or transaction IDs if you have them, and tell us how we may use your material.
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Save your case number and passphrase
After sending, you receive a case number and a passphrase. They are your only key to the case. We cannot recover them.
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We assess your tip
An AI system (Anthropic's Claude) pre-screens every tip and checks public sources about the companies you name. Our editors then review it. The AI helps us prioritise; people make every decision.
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We talk through your mailbox
If we have questions, you find them in your anonymous case mailbox. Answer there and send more documents at any time. We don't notify you, so please check back every few days.
Open my case mailbox → -
Outcome
Your information may lead to investigative reporting, referrals to regulators or support for victims. Tips that prove valuable can earn R42 rewards. Rewards are discretionary and never guaranteed.
How R42 rewards work →
Your anonymous case mailbox
Most tip lines are a one-way street. At Whistle42 your tip becomes a case you can follow, without ever telling us who you are.
- See the status of your case at any time
- Read our questions and answer them anonymously
- Send further documents whenever you find more
- See and redeem your R42 rewards
You open your mailbox at whistle42.com/tip/case with your case number and passphrase. Keep both somewhere safe: without them nobody, not even we, can open your case for you.
What makes a strong tip
We assess every tip on six criteria. Knowing them helps you tell us what matters.
Names of companies, brands and websites; dates, amounts, and how the scheme works.
The details fit together and fit what is already known.
Parts of it can be confirmed elsewhere: registers, court records, other sources.
Documents, emails, screenshots, transaction or wallet IDs.
First-hand knowledge counts more than hearsay. You never have to say who you are, only how you know.
How many people are affected, how much money is involved, whether regulated firms are part of it.
Built to protect you
Whistleblowing is sensitive. These are the concrete measures behind our tip line, and their limits.
No account, no name, no email. Optional contact details are seen only by our editors and are never passed to the AI screening.
Your submission and files are stored encrypted and are accessible only to our editors.
The tip pages load no third-party scripts, fonts or trackers, and we don't store your IP address.
Location and camera data are stripped from images automatically. PDFs are not cleaned, so remove names and metadata yourself.
Tell us how we may use your material, for example that documents must not be shown or quoted.
Our hosting provider may keep short-lived technical logs. For maximum protection, use Tor Browser on a private device and network.
Rewards for tips that make a difference
Tips that help uncover financial crime can be rewarded with R42. Rewards are granted in stages, as your tip is confirmed, investigated and published, and you redeem them with a one-time code from your case mailbox.
Specific, documented, new.
Our desk starts investigating.
Published or referred to regulators.
You answer our follow-up questions.
Know something? Tell us.
It takes a few minutes. You stay in control from the first sentence to the last.
For professionals: Request whistleblower information →