Why can I get hacked just by signing something, when it doesn’t even cost Gas? Don’t panic—the class study rep has the answer:
This type of signature isn’t an on-chain transaction, so signing doesn’t require Gas. But whoever gets the signature can submit it on-chain to make the authorization take effect.
An off-chain signature leaves no on-chain record until it’s submitted, so authorization management tools can’t find it.
Useful knowledge won’t make me rich overnight, but it can save me from learning the hard way.
$ETH 2243.35（-7.68%）
#ETH
This type of signature isn’t an on-chain transaction, so signing doesn’t require Gas. But whoever gets the signature can submit it on-chain to make the authorization take effect.
An off-chain signature leaves no on-chain record until it’s submitted, so authorization management tools can’t find it.
Useful knowledge won’t make me rich overnight, but it can save me from learning the hard way.
$ETH 2243.35（-7.68%）
#ETH
