All Questions
29 questions
0
votes
0
answers
39
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Your Bitcoin was successfully turned into USD.Requesting your agreement.. Transaction IDXXXXXXXXX [duplicate]
my email is full of request about bitcoin Bing transferred into US dollar. requesting my authorization and it has a link and a whole bunch of wallet partial wallet addresses talking about. This is ...
- 28.5k
5
votes
1
answer
626
views
How do exchanges automate transfer of Bitcoin from a cold storage wallet?
Most exchanges use Cold Storage to store the bulk (approx. 95%) of their user assets. Only a relatively small amount (approx. 5%) of funds are held in their Hot Wallet.
My question is, what process is ...
- 77.9k
-1
votes
1
answer
471
views
Which offers more privacy, coinjoin-whirlpool or non-KYC online exchanges?
After buying crypto with fiat on a KYC exchange, instead of just moving the crypto to a wallet, I understand that I should get more anonymity from tracking by putting the coin through coinjoin or ...
CommunityBot
- 1
0
votes
1
answer
309
views
How to verify Wrapped Bitcoin (WBTC) issuance
I'm trying to understand how Wrapped Bitcoin (WBTC) issuance can be verified.
The WBTC custodian, BitGo, published the following material:
https://wbtc.network/dashboard/audit
This is a list of ...
CommunityBot
- 1
0
votes
1
answer
83
views
is wallet vulnerable when unlocked for transactions?
is wallet vulnerable when unlocked for transactions?.I recovered a wallet some time ago and all is good.passphrase key all looks good.But a question came to my mind about the moment we make a ...
CommunityBot
- 1
0
votes
1
answer
385
views
"Hot", "Cold" & "Warm" Storage Wallets? [duplicate]
I've seen a number of sites advertise they support "hot", "warm" and "cold" wallet storage solutions (the only thing I haven't seen so far are "frozen" wallets)....
- 133
0
votes
1
answer
44
views
Can an exchange or marketplace benefit from private key encryption?
A powerful security technique to prevent theft of Bitcoins from a user's online wallet is to encrypt the user's private key with his password without ever stroring the PK directly in the database. ...
- 419
0
votes
1
answer
128
views
What is the alternative for an exchange which doesnt want to run a node of a coin traded?
It seems to be best practice for
an exchange to run a node itself for a
coin traded there.
But, is there an alternative?
A third party service? If yes, which are recommended and why?
- 1
0
votes
1
answer
50
views
Where are the exchange keys kept? [closed]
Following what happened in Kucoin, a doubt arises.
Where are the exchange keys kept?
Are HSMs not used for key storage?
- 1,719
4
votes
2
answers
226
views
How can multifactor authentication be used when there needs to be two people with access?
For a business account at a Bitcoin exchange, either of two people need to be able to send bitcoins or withdraw. This account will be configured with two-factor authentication.
How can two of the ...
- 298
1
vote
1
answer
107
views
Whose to stop the coinbase devs from just draining all accounts and running of with the money?
I have been wondering, what would happen if the coinbase developers agree to drain all the funds of all their accounts and run off into hiding?
Its not like anybody will be able stop them or return ...
- 2,855
9
votes
6
answers
391
views
What would a new exchange need to be better than the rest?
If a new crypto v crypto exchange were to be built and launched. What would tempt you to use it rather than what you currently use? Or what improvements would you like to see from the way things work ...
- 101
-1
votes
2
answers
3k
views
Binance hacked?
Something is happening, yesterday in reddit many people could not withdraw their funds or cancel their purchase orders .
And the administrator (who is binance and usually solves the problems) erased ...
6
votes
3
answers
3k
views
Which exchanges support U2F authentication? [closed]
I got myself a nice security key (Yubico Fido) today, which utilises the U2F protocol. But to my surprise not a single Bitcoin exchange seems to support this yet, only Google itself.
So which ...
- 1
8
votes
3
answers
51k
views
Is it safe to store all my coins on Coinbase?
Is it safe to store my coins (BTC & ETH) on the Coinbase platform or is it safer to download a wallet to keep them in?
3
votes
3
answers
226
views
Securely encrypting a cold storage wallet
I'm going to buy bitcoin to exchange BRL to CAD currency, as it's gonna be a great amount I'm concerned about the security of my wallet. I don't want to use a physical backup like paper or device ...
- 2,719
1
vote
1
answer
249
views
If the PHP script and the Bitcoin wallet are on the same computer, does encrypting the link is necessary?
Dears,
If the PHP script and the Bitcoin wallet are on the same computer, does encrypting the link is necessary? like turn ssl on:rpcssl=1
- 23.1k
2
votes
0
answers
150
views
How can I create an exchange in a foreign country? [closed]
New to stack exchange this is my first post so sorry if its rough.
I'm part of a project interested in bringing BTC and crypto trading to Angola. We aren't sure where to start or what the best route ...
1
vote
1
answer
154
views
What cryptography hardware and/or software does a bitcoin exchange need to employ?
We have an operating equities exchange. To exchange bitcoin or other crypto-currencies, what cryptographic hardware or software would we have to use?
- 29.5k
1
vote
1
answer
119
views
MtGox's secondary market?
I remember back in the day when MtGox halted its BTC withdrawals, someone put together a secondary market exchange for trading MtGoxBTC for actual BTC. You could deposit MtGox BTC to it since the ...
- 43.2k
3
votes
2
answers
1k
views
How do on-line wallet or bitcoin exchanges usually secure their private keys?
I suppose they're kept encrypted as not to do so would be the equivalent as saving plaintext passwords. I heard most of them keep a percentage of the funds in cold storage, but then isn't it ...
CommunityBot
- 1
2
votes
3
answers
644
views
Can an exchange work which does not have control of the private keys?
It seems like there is really no great way to exchange USD for BTC. Having to trust an exchange with your private keys is undesirable. I'm wondering if there is a way to utilize the convenience of ...
- 221
3
votes
2
answers
214
views
What other currencies have same malleability vulnerability as Bitcoin? [closed]
Malleability of Bitcoin protocol has contributed to major losses and represents uncomfortable risk to Bitcoin investors in addition to possibility of 51% attack that depends on promise of biggest ...
- 29.5k
4
votes
4
answers
328
views
How can one gauge the reliability, customer service, and transparency of bitcoin exchanges?
There are several exchanges for Bitcoin with a few highly respected ones like Mt.Gox, Bitstamp, bter, bit-e etc. I understand the reason why they require verification of users by supplying their bank ...
- 1,426
2
votes
1
answer
651
views
How would you store a bitcoin wallet for a small bitcoin exchange?
How would you store a bitcoin wallet with the security of the wallet being a priority for a small bitcoin exchange? Offline wallets are the safest though how would a client be able to withdraw their ...
- 2,893
1
vote
1
answer
177
views
Bitcoin HEISTS: Has USD, EUR, etc ever been stolen from an exchange?
Many bitcoin exchanges allow users to store two balances: one in bitcoin and one in a fiat currency like USD. This is convenient because it allows one to trade in and out of the bitcoin market ...
CommunityBot
- 1
2
votes
1
answer
219
views
Is there a risk of double-spending when making a face-to-face transaction?
When exchanging funds or services face-to-face, is there a risk of a double-spending attack? If there is, how could it be technically done?
- 7,062
5
votes
1
answer
634
views
What is the reputation of bitfloor?
It seems that bitfloor is a well designed trading platform, and a competitor to MtGox. However, the trading volume is low.
How long has bitfloor been in business?
Have there been any negative ...
- 27.1k
9
votes
2
answers
263
views
Do any of the Bitcoin exchanges implement trading curbs?
After the big hack of Mt Gox we all became aware that there is nothing in place to prevent "flash crashes." Most stock, FOREX and other exchanges have features like trading curbs or other market ...
- 5,432