4 ms·
14000 transactions at 1400 ATMs in 2 hours?! Think about the logistics. That's 120 transactions per minute. And 1600 cards. Either an army of coordinated people
by vegabook 10y ago
14000 transactions at 1400 ATMs in 2 hours?! Think about the logistics. That's 120 transactions per minute. And 1600 cards. Either an army of coordinated people, in itself highly risky as it vastly increases the likelihood of someone grassing on the group, or fewer people all sitting at the same ATMs drawing for 2 hours.... difficult not to get noticed. If they really pulled this off it will be the most well organized organized crime ever.
- grecy 10y agoI was thinking the same. And it mentions every single transaction was for the maximum withdrawal amount. The system doesn't notice when 116 transactions per minute are for the maximum withdrawal amount? The ATMs don't run out of cash really quickly?
- brianwawok 10y agoHave you ever worked on a risk system? Hard to get right I would imagine. Very possible news of a hurricane would lead to a bunch if max rate withdrawals. May not want to cut everyone off then..
- firethief 10y agoThe false positive rate for "shut down everything" needs to be very low, but it sounds like the threshold for "page somebody" could have been sooner.
- brianwawok 10y agoIt got shut down in 2 hours, not impossible someone got paged 15 minutes in...
- deleted 10y ago[deleted]
- zhte415 10y agoJapan is a very cash-based economy. Large withdrawals are not uncommon. 116 transactions at the same ATM should raise some red flags, but there are very few people looking.
- nandemo 10y agoA lot of Japan's economy is still cash-based. On common paydays like the 25th and (to a lesser extent) the 15th of the month you'll see long lines at the ATMs. The heist happened on the 15th. The maximum withdrawal amount in this case is only about 1000 USD. Not that much. A lot of people will withdraw the max on the payday. And it was only 10 transactions per ATM in average, spread along 2 hours. To the extent that these ATMs are just terminals that serve a variety of networks, I wouldn't assume Seven Bank is at fault. The real WTF is how cards can still be cloned so easily, how they got the passwords, how the S.A. bank didn't notice a spike in transactions from Japan, etc.
- andrewflnr 10y agoYou slipped in a zero :). It's 1400 transactions, for ~12/min. Still a lot, but not quite as omgwtf'y.
- vegabook 10y agocorrected
- vegabook 10y agoactually - it was 14 000 transactions, but at 1400 different ATMs. stet
- andrewflnr 10y agoOops, sorry!
- fragsworth 10y agoThe Yakuza has 102,000 members - https://en.wikipedia.org/wiki/Yakuza https://en.wikipedia.org/wiki/Yakuza. "The yakuza are notorious for their strict codes of conduct and organized nature."
- jpatokal 10y agoThe Yakuza don't pull stunts like this, they're way too closely watched by the cops and an operation on this scale will be traced back to where it came from.