Japanese DMM Bitcoin Exchange Hacked for 4503 BTC (UPDATED)

The attack likely involved using a poisoned address to trick at least one keyholder into unknowingly signing over 4503 BTC to the attacker.

https://www.nobsbitcoin.com/japanese-dmm-bitcoin-exchange-hacked-for-4500-btc/

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Discussion

Fascinating that they grinded the leading and ending characters of the address. I guess I will be more careful recommending people to check the last few and the first few characters of an address.

To be fair, that's always only a second or third line of defence, for low or medium size transactions, but still ...

Shouldn't they have checked more than just the last two characters? I thought you're in the clear if you check the first and last six characters.

Hesitate to put a number on it, but first and last 6 is already very strong, yeah .. maybe 9 bytes of entropy based on base58 expansion? Don't quote me, heh.

Guilty of only checking the first and last few characters in the past, lol clearly not doing that again

damn. do it all the time.

woof, thats having a bad day

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