
Founder @ChainZap_io Building transaction decision workflows for stablecoin payments and payouts.
Barcelona, Spain
Joined June 2026
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The blockchain shows what happened.
Your internal system shows what was supposed to happen.
Those two things don’t always match.
That gap is where retries, duplicate payments and unresolved cases hide.
That’s what we’re working on with ChainZap.
Yujin Gray retweeted
72% of crypto crime cases in 2026 weren't smart contract exploits. They were phishing, scams, and compromised wallets.
And 69% of all incidents happened on just two networks: Ethereum and TRON right where USDT business payments live.
Most operational losses don't look like a $100M protocol hack. They look like a normal USDT transfer sent to the wrong counterparty.
72% of crypto crime cases in 2026 weren't smart contract exploits. They were phishing, scams, and compromised wallets.
And 69% of all incidents happened on just two networks: Ethereum and TRON right where USDT business payments live.
Most operational losses don't look like a $100M protocol hack. They look like a normal USDT transfer sent to the wrong counterparty.
Yujin Gray retweeted
$165K was drained from a USDT lending market.
But the attacker ended up with nothing.
A white-hat MEV bot front-ran the exploit, captured the funds, and later returned 159K USDC to the protocol.
Speed matters in crypto security but so does what happens after the exploit.
$165K was drained from a USDT lending market.
But the attacker ended up with nothing.
A white-hat MEV bot front-ran the exploit, captured the funds, and later returned 159K USDC to the protocol.
Speed matters in crypto security but so does what happens after the exploit.
Yujin Gray retweeted
You can lock your seed phrase in a safe, never type it online, and still wake up to a zero balance.
Most drains today happen without stealing keys. You hand over access yourself when you blindly sign an unlimited Approve on a site just for a quick swap or claim.
Six months later, that protocol gets exploited, and hackers drain your tokens in a second using an old permission you completely forgot about.
Basic survival rule: one cold wallet strictly for storage, and a burner wallet for connecting to dApps. Never sign contracts where you keep your main bag.
You can lock your seed phrase in a safe, never type it online, and still wake up to a zero balance.
Most drains today happen without stealing keys. You hand over access yourself when you blindly sign an unlimited Approve on a site just for a quick swap or claim.
Six months later, that protocol gets exploited, and hackers drain your tokens in a second using an old permission you completely forgot about.
Basic survival rule: one cold wallet strictly for storage, and a burner wallet for connecting to dApps. Never sign contracts where you keep your main bag.
Yujin Gray retweeted
One fake AML checker drained 233,400 USDT from 101 wallets just by getting users to sign unlimited approvals to verify if their funds were clean. A real screening tool only needs a public address or tx hash if an AML check asks you to connect your wallet and sign something, it’s a drainer.
One fake AML checker drained 233,400 USDT from 101 wallets just by getting users to sign unlimited approvals to verify if their funds were clean. A real screening tool only needs a public address or tx hash if an AML check asks you to connect your wallet and sign something, it’s a drainer.
Yujin Gray retweeted
A UK crypto investor was bound with tape and robbed of $800k at knife point during a home invasion.
We spend hours setting up cold wallets and auditing smart contracts, but any cryptography is useless against physical violence.
Showing off gains, luxury purchases, and your location on social media puts a target on your back.
The best security for a large bag is anonymity. Money loves silencein crypto, your physical safety depends on it.
A UK crypto investor was bound with tape and robbed of $800k at knife point during a home invasion.
We spend hours setting up cold wallets and auditing smart contracts, but any cryptography is useless against physical violence.
Showing off gains, luxury purchases, and your location on social media puts a target on your back.
The best security for a large bag is anonymity. Money loves silencein crypto, your physical safety depends on it.
Yujin Gray retweeted
Checking only the first and last 4 characters of a crypto address is a habit that will eventually wipe out your balance.
Scammers generate fake wallets with the exact same starting and ending characters in seconds and drop them into your transaction history.
Your eyes catch the familiar beginning and end, you hit send on autopilot and your funds are gone for good. Always check the middle of the address too. In crypto, a second of laziness costs way too much.
Checking only the first and last 4 characters of a crypto address is a habit that will eventually wipe out your balance.
Scammers generate fake wallets with the exact same starting and ending characters in seconds and drop them into your transaction history.
Your eyes catch the familiar beginning and end, you hit send on autopilot and your funds are gone for good. Always check the middle of the address too. In crypto, a second of laziness costs way too much.
Yujin Gray retweeted
Scammers found the perfect bait: our obsession with clean wallets
.
Fake AML checkers now drain USDT by asking for unlimited approvals just to verify your funds. One operator stole 233k USDT from 101 wallets this way.
When compliance itself becomes the phishing vector, the risk model is broken.
Scammers found the perfect bait: our obsession with clean wallets
.
Fake AML checkers now drain USDT by asking for unlimited approvals just to verify your funds. One operator stole 233k USDT from 101 wallets this way.
When compliance itself becomes the phishing vector, the risk model is broken.
Yujin Gray retweeted
$90 million was stolen from Ledger owners. Hackers planted cellular bugs right under the screens of wallets sold by a major reseller.
You turn on the device, look at your secret phrase, and the screen is already sending it to scammers. All the while, Ledger's official check says your device is safe.
At ChainZap, we protect crypto transfers from scams and teach you not to blindly trust interfaces. But algorithms are powerless if the gadget was physically tampered with in transit.
Buy wallets only directly from the manufacturer. The illusion of security cost people $90 million.
In this photo, we analyzed where the funds went, thanks to Chainzap.
$90 million was stolen from Ledger owners. Hackers planted cellular bugs right under the screens of wallets sold by a major reseller.
You turn on the device, look at your secret phrase, and the screen is already sending it to scammers. All the while, Ledger's official check says your device is safe.
At ChainZap, we protect crypto transfers from scams and teach you not to blindly trust interfaces. But algorithms are powerless if the gadget was physically tampered with in transit.
Buy wallets only directly from the manufacturer. The illusion of security cost people $90 million.
In this photo, we analyzed where the funds went, thanks to Chainzap.
Yujin Gray retweeted
The blockchain shows what happened.
Your internal system shows what was supposed to happen.
Those two things don’t always match.
That gap is where retries, duplicate payments and unresolved cases hide.
That’s what we’re working on with ChainZap.






