Live data from Hacker News

Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK

reuters.com

261–270 of 312 posts

Re: Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK

#261
post #207
post #147

Earlier quoted context omitted.

> Crypto wallets changing hands is a non-event for prices. Surely the point was more: "Why doesn't the obvious risk events like this represent affect the price of the commodity?" I mean, at this point I have to believe that the likelihood of a given dollar-equivalent of crypto currencies being stolen is much, much higher that it is for literal paper money. And paper is uniformly considered too risky to use as an asse…

There will be so many small time investors losing money when the bubble pops it's starting to make me wonder if it won't lead to some serious global destablization. This isn't just some investment play-thing of otherwise well-off individuals in developed countries. A lot of dumb money has flowed in, and it's from people who probably can't really afford to lose it without taking a serious hit to their net worth. Inter…

Based on some surveys I did within the general US population, a significant number of people (around 30%) haven't even heard of Bitcoin or cryptocurrencies and most (60%+) have heard of it but haven't put money in it.

Keep in mind that statistically speaking, you and I live in an echo chamber. Hacker News is a bubble of engineers with a penchant for business and finance (startups, the main thing here, are where geeks who also like money gravitate towards). My subjective experience in meatspace is similar to yours: a lot of people around me are involved somehow with cryptos, but I think that is likely caused by me fitting the aforementioned demographic.

I think (and surveys validate) that the general penetration in the general population is still low. Total market cap for cryptocurrencies is 500B as we speak. Actual capital involved is much less.

This is peanuts when compared to any measure of the global financial system. Most people have heard and operate by the mantra "this is crazy, don't put anything in that you are not willing to lose".

500B is a little over half what Apple alone is worth on NASDAQ. The difference being most people don't invest in Apple directly. A lot of people are probably exposed to Apple stock, but I don't think any mutual/hedge funds have significant positions in cryptocurrencies where a crash would affect the common folk.

That is very different from a subprime mortgage used to buy a house you live in. No one that I know sells during dips or crashes, because cryptos are to some extent "play money". This, I think, explains the resiliency of the market to its wild fluctuations: no one expects anything else but crazy volatility.

That being said, I am certain that cryptos will take a page in the history books. I have personally witnessed people doing and saying things that immediately make me think I should probably be working on the script for the cryptocurrency edition of The Big Short.

Source: I have a bit of skin in the game.

Re: Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK

#262
post #227

Earlier quoted context omitted.

Too bad Bitcoin uses ECDSA instead of Ed25519 (or any other signature algorithm supporting threshold signatures). With threshold signatures, you don't even need something in the wallet saying "any N of the following M", you could just give secret shares to those M parties, and any N of them could collaborate to sign something using your single public key.

You could just do that anyway by running Shamir's Secret Sharing Scheme on a Bitcoin private key, splitting the key into M parts where any N of M parts can be combined to recover the original private key.

That's a fair point, but threshold signatures are more generally useful, such as N of M board members authorizing payment to X, without having to place trust in a single board member not to change the transaction to a different amount or address.

Re: Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK

#263

Earlier quoted context omitted.

Genuinely curious: How do you know a private key is stolen with a cryptocurrency? Is there some sort of secondary proof mechanism?

If funds move out from your wallet without your intervention then somebody else has to have your key.

Yes, but from the exchange's perspective: How do they know?

I'm presuming that in this case (given the amount) that this was not a typical user. But is there some framework of dispute for lesser amounts?

Re: Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK

#264

Earlier quoted context omitted.

If funds move out from your wallet without your intervention then somebody else has to have your key.

Yes, but from the exchange's perspective: How do they know? I'm presuming that in this case (given the amount) that this was not a typical user. But is there some framework of dispute for lesser amounts?

Dispute?

Re: Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK

#265
post #130

Earlier quoted context omitted.

Why not? By using a usd-token like usdt it become possible. Bitshare usd also has been very stable lately and it is fully decentralized.

Somebody has to guarantee that the the USD are actually there to perform a trade. There's no other way to guarantee that that doesn't imply going off-chain.

> Somebody has to guarantee that the the USD are actually there to perform a trade.

That's what kids in my day called "a risky click".

Re: Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK

#266
post #50

A lot of people take for granted of a bank guarantees from govt. In a bank you are protected if the bank burns down or gets robbed empty. Unlike the Wild West here

Up to $250K in the US.

Per bank though right? Like if you have several different banks you could get multiple $250k?

Re: Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK

#267
post #261
post #207

Earlier quoted context omitted.

There will be so many small time investors losing money when the bubble pops it's starting to make me wonder if it won't lead to some serious global destablization. This isn't just some investment play-thing of otherwise well-off individuals in developed countries. A lot of dumb money has flowed in, and it's from people who probably can't really afford to lose it without taking a serious hit to their net worth. Inter…

Based on some surveys I did within the general US population, a significant number of people (around 30%) haven't even heard of Bitcoin or cryptocurrencies and most (60%+) have heard of it but haven't put money in it. Keep in mind that statistically speaking, you and I live in an echo chamber. Hacker News is a bubble of engineers with a penchant for business and finance (startups, the main thing here, are where geeks…

And on the flip side a movie lime "wolf of walstreet"

Re: Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK

#268
post #261
post #207

Earlier quoted context omitted.

There will be so many small time investors losing money when the bubble pops it's starting to make me wonder if it won't lead to some serious global destablization. This isn't just some investment play-thing of otherwise well-off individuals in developed countries. A lot of dumb money has flowed in, and it's from people who probably can't really afford to lose it without taking a serious hit to their net worth. Inter…

Based on some surveys I did within the general US population, a significant number of people (around 30%) haven't even heard of Bitcoin or cryptocurrencies and most (60%+) have heard of it but haven't put money in it. Keep in mind that statistically speaking, you and I live in an echo chamber. Hacker News is a bubble of engineers with a penchant for business and finance (startups, the main thing here, are where geeks…

> Based on some surveys I did within the general US population, a significant number of people (around 30%) haven't even heard of Bitcoin or cryptocurrencies and most (60%+) have heard of it but haven't put money in it.

I hope these numbers aren't in any way accurate or representative, because they are absurdly high. If 40% of the population has invested in cryptocurrencies, that can't be anything but dangerous.

Re: Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK

#269

Earlier quoted context omitted.

If funds move out from your wallet without your intervention then somebody else has to have your key.

Yes, but from the exchange's perspective: How do they know? I'm presuming that in this case (given the amount) that this was not a typical user. But is there some framework of dispute for lesser amounts?

If a key was indeed stolen, they must have stole the keys to the exchange's wallet, not a user's wallet. I heard in the press conference they don't have a multi-sig wallet so all it took was one key and not multiple keys.

Re: Tokyo-based cryptocurrency exchange hacked, losing $530M: NHK

#270

Earlier quoted context omitted.

If funds move out from your wallet without your intervention then somebody else has to have your key.

Yes, but from the exchange's perspective: How do they know? I'm presuming that in this case (given the amount) that this was not a typical user. But is there some framework of dispute for lesser amounts?

[deleted]
Post reply on HN