Last week, five people were indicted in Houston for stealing nearly $24 million in checks. Three of them were mail carriers.
They did not break into a single house. They did not jimmy a single mailbox. They worked for the postal service, and the checks came off the routes they walked - utility bills, car payments, birthday cards. The stolen paper was sold through a Telegram channel with the fitting name “slipsandchips” and shipped to buyers, who washed it, rewrote it, and cashed it.
I know what you are thinking: who still mails checks? More people than you would guess, and my own mother-in-law is one of them. She pays the gardener, the cleaner, and the church by check, because the habit is forty years old. This article is for her, and for everyone who has ever dropped an envelope in a blue box and not thought about it again.
The check is the only payment you make that hands a stranger your account number, your routing number, and a copy of your signature. A credit card number can be replaced. An account number and a signature cannot be un-signed. Here is how the theft works, why it is so hard to catch, and the two-minute changes that keep your money safe.
This is the newest addition to our scam series. The first article covered the fake bank call, the second covered the recovery call that follows a scam, the third covered the gold bar scam, the fourth covered the paid-search bill, and the fifth covered the package that shows up at your door. Every one of them ends with money moving through a method that is hard to get back. This one is about the oldest method of all, and it is the reason both the New York Times and the Washington Post ran major pieces this June telling readers to stop mailing checks.
How the Check Gets Stolen
Step one: the interception
There are two ways a check leaves your control, and neither takes a clever criminal.
The first is the mailbox. The flag goes up, the mail sits overnight, and a thief takes the whole bundle - or fishes the envelopes out with a string and a sticky trap. Blue collection boxes get raided too.
The second way is the one Houston just made famous: the carrier. Federal prosecutors say three carriers stole checks from the routes they were paid to walk and handed them to the two people running the operation. Mail theft is not always a stranger in the dark. Sometimes it is the person in the uniform.
Step two: the wash
The wash is where check washing gets its name, and the chemistry is embarrassingly simple.
Most checks are written in ballpoint ink, and most ballpoint ink dissolves in common household chemicals - acetone, the stuff in nail polish remover. The thief wipes the check clean of the payee line and the amount, and leaves the signature untouched. That is the whole trick. The signature is the hardest part to forge, so the wash exists to keep the one part they cannot copy.
Then the check is rewritten: a new name, a new amount, the same signature. A $40 payment to the electric company becomes a $4,000 check to a stranger, and to a bank teller or an automated reader it looks ordinary - because it is ordinary, with the wrong handwriting.
Step three: the sale
Not every stolen check gets washed. Some are sold as they are, because the paper itself is not the prize - the numbers on it are.
A check carries your name, your address, your bank’s routing number, your account number, and your signature. That is a complete kit. The Houston operation sold checks through a Telegram channel, and the market for stolen checks is a real, organized business: sellers advertise, buyers pay, the checks ship like merchandise. The Postal Inspection Service says it recovers more than a billion dollars in fraudulent checks and money orders every year - and that is only what it catches.
Step four: the deposit
The last step is the quietest, and it is why the crime is so hard to stop.
The washed check gets deposited into an account opened for the purpose, or cashed somewhere that does not look too closely. Banks process a staggering number of checks a day, and the system is built for speed, not scrutiny. The check clears, the money moves, and the account holder finds out later - from a statement, or from a bounced bill, or not at all.
The New York Times told the story of a retiree whose tax payment check was altered; the bank’s automated system paid it, and getting the money back became a months-long fight. That is the normal shape of this crime: by the time you know, the money is somewhere else.
Why It Works So Well
Check washing works because the reasons stack.
The check carries everything. A thief does not need to break into your account. You handed them the keys - the numbers and the signature - and the mail delivered it.
The wash is easy. Nail polish remover is in every drugstore, and the technique takes a minute. This is not a sophisticated crime.
The victims are people like us. The people still mailing checks are often older, often living alone, and often not watching online banking - the same reader this series is written for, and exactly why the scammers chose them.
The One-Question Test
That is the series test in its check form, and the answer is the whole lesson. No real bank, no real company, no real government agency routes your money through a mailbox on a street corner with a flag on it - not when a wire, a card payment, or a direct transfer does the same job in seconds.
The second tell is the one from the rest of this series: real institutions bill you, they do not collect on the spot, and they never ask you to move money through a method that is hard to trace. The check is the most traceable payment ever invented - which is exactly why thieves steal it instead of asking for it.
The Protection Ladder
Here is what actually helps, in order of how much it protects you.
Pay electronically. This is the complete fix. Your bank’s online bill pay sends the money without paper, and if the payee insists on a check, the bank prints and mails it from its own system, not your mailbox. Once the bill is set up, you never think about it again. This one change kills the entire crime for you.
If you must mail a check, drop it inside the post office. Not the blue box, not the flag. Inside the building, the mail goes straight into the postal system. The Houston case shows the stream is not perfectly safe either, but you have removed every thief who works the street.
Use a gel pen. Gel ink soaks into the paper fibers and survives the acetone bath that dissolves ballpoint ink. Honest caveat: this slows a determined thief down, it does not stop them. Think of it as the seatbelt, not the airbag.
Watch the images, not the balance. Online banking shows a picture of every cleared check. Look at the payee and the amount in the image, not just the number that left your account. This is how you catch a washed check within days instead of months.
Sign up for Informed Delivery. The Postal Service emails you a photo of the mail arriving that day, free. You will notice when a check that should have arrived did not - and a missing check is the alarm bell for the rest of this article.
If It Has Already Happened
If a check went missing or you see a cleared image with the wrong payee, do the following:
Call your bank today. If the check has not cleared, stop payment. If it cleared altered, tell them it was washed and you want the money returned. The law gives you a limited window to report a forged or altered check - roughly 30 days from when your statement is sent. Miss it, and the bank can legally tell you the loss is yours.
Report it to the Postal Inspection Service at uspis.gov - that is the federal agency that investigates mail theft, and its reports are how patterns like the Houston ring get caught. File a report at ReportFraud.ftc.gov as well, for the same reason I have said in every article in this series: the warnings start with reports.
Freeze your credit. A stolen check carries your account number, and account numbers have a way of showing up elsewhere. A freeze at the three credit bureaus costs nothing and stops anyone from opening new accounts in your name. Ask the bank about a new account number - for a fully washed check, it is often worth it.
Tell one person you trust. The people who steal checks also trade in the information, and the follow-up scam is always one phone call away. The person who knows can stop the next call from landing. The second article in this series covers that call - someone offering to “recover” your stolen money for a fee.
Also: this is not your fault, and it is not a sign of being behind the times. You used the payment method you were taught, the way every generation before you did. The crime changed, not you.
The One Conversation
If you have a parent or grandparent who still mails checks, have this conversation - it takes two minutes:
“I am switching the bills to electronic payments this month, and I want to do yours with you. Not because you did anything wrong. Because thieves are stealing checks out of the mail now, and your check has everything they need on it. We will set it up together, and you can watch every payment from your own chair.”
That is the whole conversation. No lecture, no “you are old-fashioned,” no shame. Just the fact, the offer, and a chair side by side.
What to Do Now
Pick one thing today:
- Switch one bill to your bank’s online bill pay - the electric bill is the perfect first one.
- Open your online banking and look at the last cleared check image. Does the payee look right?
- Sign up for Informed Delivery - five minutes at informeddelivery.usps.com.
- If someone you love still mails checks, have the conversation this week.
Remember the one question. Would a real institution send my money through a box anyone can open?
The check is the only payment that hands a stranger your account number and a copy of your signature. You would not hand that to a person on the street - do not hand it to a blue box.
This is the eighth article in the Scam Awareness series. More coming - if there is a scam you keep hearing about and want explained, let me know and I will write it up.
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