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SynapLogic contract exposes a serious vulnerability. Hackers successfully stole approximately $186,000 through this flaw, once again sounding the alarm on contract security.
Where is the problem? This contract is mainly used to distribute the revenue share of the native token SYP, but it has a fatal flaw in its design — it does not verify whether the total allocated amount truly matches the actual transferred funds (msg.value).
How did the attacker exploit it? Very simple and crude. By specifying a particular recipient address, they caused the system to calculate an allocation of tokens far exceeding the actual payment amount. Then, by exploiting this discrepancy, they completed arbitrage after obtaining the newly minted SYP tokens — one in, one out, the hacker pocketed the money.
Although this type of vulnerability is fundamental, it poses a huge threat. A reminder to everyone: token distribution mechanisms must include proper value verification and upper/lower limit restrictions, or else you are opening a backdoor for hackers.
Another textbook-level arbitrage, not even checking msg.value? I guess this development team really hasn't thought it through.
$186,000 just gone like that. Why do we still have to repeatedly emphasize contract security?
That's why I only trust projects that have been audited; I don't even want to touch others.
Oh my, 186,000 just disappeared like that. Such a basic mistake is really outrageous.
SYP is probably going to crash to the floor this time...
Contract security really needs to be taken seriously, or else it’s just opening a VIP channel for hackers.
It’s always the same, only thinking about audits after the fact. Why didn’t you do it earlier?
This guy’s arbitrage method, to put it plainly, is just exploiting vulnerabilities in contract design. So impressive.
They added another "do not touch" blacklist for me. Thanks a lot, developers.
The mouse person is manipulating data again... msg.value isn't even verified, who designed this?
How are contract audits just going through the motions? Can something like this pass?
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$186,000 lost just because of not adding a verification? Ridiculous.
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Can't even verify msg.value and still dare to go live, truly incredible.
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Arbitrage is indeed a basic move, but the vulnerabilities are just too low-level, haha.
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Always say to pay attention to security, but next time, the same old tricks get exploited again.
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That's why I only stick to airdrops; I really don't trust contracts.
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Basic things like value verification can be missed? What was the audit team doing?
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Where did the contract audit go? Such obvious checks are not even done
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Not even verifying msg.value, what is this team thinking
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Speechless, another project giving money to hackers
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This is why I don't touch un-audited DeFi projects, too reckless
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A typical logical flaw in distribution, failing to set proper upper and lower limits is asking for trouble
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Can you imagine how much code is still running blindly like this
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Hackers come and go in an instant, developers really need to take security seriously
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Every time they say they will audit and ensure safety, new vulnerabilities are exposed
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Missing such basic protections, smart contract audits are really terrible
Why is contract auditing so difficult? Not even validating msg.value? Ridiculous.
186,000 just gone like that. Luckily, it's not my coins.
How careless can you be? Not even validating msg.value? I'm truly speechless.
I'm just wondering, why are there still people daring to deploy such things?
It's another case of msg.value not being validated. How can such a basic mistake make it onto the blockchain?
It's outrageous—people just run as soon as they enter and exit. This design is basically just giving away money.
SynapLogic's move was really embarrassing; they didn't even do basic validation properly.
It's really time to reflect—things like value validation shouldn't be overlooked.
Contract development really needs to be more cautious. This time, they lost out.