22 votes
Accepted

How do I use my MyMonero wallet via the Monero Core GUI?

The MyMonero wallets use a different type of mnemonic: 13 words instead of 25 words. The Monero Core GUI (or the CLI) doesn't support restoring a wallet from a 13 word mnemonic seed. Therefore, you'll ...
dpzz's user avatar
  • 4,529
18 votes
Accepted

Tor support on MyMonero.com

There was evidence of several cases of Tor exit nodes injecting JavaScript into the page. The developers of MyMonero did not want to risk MITM attacks leading to more theft of Monero funds. At some ...
Game Changer's user avatar
  • 1,491
16 votes
Accepted

How do I, as a recipient, verify that my transaction actually arrived?

First, theoretical background can be found here: Selective transparency in Monero vs Zcash Why is the viewkey able to track incoming transactions, but not outgoing transactions? Is there any way to ...
dEBRUYNE's user avatar
  • 15.2k
15 votes
Accepted

What is to stop mymonero.com from taking everyone's money?

The fact that it never gets access to the your private spend key. The workings of the site are explained here. Your monero are "kept" on the blockchain and not on the site itself. The site is just an ...
JollyMort's user avatar
  • 19.9k
15 votes
Accepted

private spend key versus mnemonic seed

Thanks to deterministic key derivation, the private spend key is an alternate representation of the mnemonic seed. Both the mnemonic seed and private spend key can be used to derive all other keys ...
254123179's user avatar
  • 4,566
11 votes
Accepted

Not enough spendable outputs error on MyMonero

When you send a Monero transaction the sum of the outputs used in the ring transaction will exceed the amount of your payment. Once the transaction is confirmed the change is returned to your wallet. ...
254123179's user avatar
  • 4,566
10 votes
Accepted

mnemonic seed order

The number of ways to arrange n distinct objects is simply n! (n factorial), so for 13 unique words (I don't believe they're allowed to have repeats repeats are allowed, but the probability of getting ...
jwinterm's user avatar
  • 4,403
9 votes
Accepted

Mymonero and monero-wallet seed

Yes, it's less secure because it's 128bits of entropy in the 13-word seed vs 256bits of entropy in the 25-word seed. However, it's considered safe enough as it would again take an impossible* amount ...
JollyMort's user avatar
  • 19.9k
9 votes

Why is there a fee to import old transactions when using mymonero web wallet?

Re-scanning the blockchain from 0 consumes server resources and takes time. The fee is there to discourage this use case, but providing the utility if it's really required for some users. If a new ...
JollyMort's user avatar
  • 19.9k
8 votes
Accepted

How does mymonero web wallet work?

There's a daemon (monero core) running on the MyMonero server. When you go to mymonero.com and make a new webwallet, there's a script in the browser that sorta functions like wallet software. The ...
Ginger Ale's user avatar
  • 5,676
7 votes
Accepted

Normalized seed

At the beginning, when we designed the mnemonic seed mechanism, the spec was to have a seed derived from the mnemonic, hash it to produce the spend key, and hash it again to produce the view key. ...
fluffyponyza's user avatar
  • 5,089
7 votes
Accepted

Can I avoid Javascript poisoning when using MyMonero.com?

Yes. In the mean time, a Chrome application have been released to largely reduce the security limits of MyMonero (that come from the concept of a web wallet rather than errors from the developer). ...
Clement J.'s user avatar
  • 3,339
7 votes
Accepted

Are transaction fees hardcoded?

They are hardcoded in the wallet software, not the protocol. That said, the protocol expects a non-zero fee for each transaction. The Monero protocol does not do fee free transactions so that it can ...
ferretinjapan's user avatar
7 votes
Accepted

Monero and warrant canary

I am not aware of any warrant canary existing at the moment. Monero (unlike ZCash and Dash) doesn't have any central authority - an organisation, that could receive the subpoena secret order or ...
urza.cc's user avatar
  • 699
7 votes
Accepted

How private is this transaction sequence?

If "someone" doesn't have access to any of the services, there's no way he can tell that the final TX is connected to you. If "someone" had access to only ShapeShift data, he'd know to which Monero ...
JollyMort's user avatar
  • 19.9k
6 votes
Accepted

electrum seed word list for monero != official electrum wordlist (english): why?

Any reason why? TL;DR: It's a different convention. Monero is not a fork of Bitcoin, so most things were worked out from scratch. Does this mean that mymonero-simplewallet wouldn't accept a Bitcoin-...
JollyMort's user avatar
  • 19.9k
6 votes
Accepted

What happens to XMR sent to an unexisting address? Is it sent back?

An 'unexisting address', probably due to a typo, would mean that there would be no known private keys corresponding to the address that funds were sent to. This should be protected against to some ...
knaccc's user avatar
  • 8,468
5 votes

Question about mining to a remote online wallet

Yes, the start_mining <addr> command will send your mined Monero directly to the address you specify. Most people that run their own full node will mine to a local wallet, but mining to a web ...
Smart Kid's user avatar
  • 6,563
5 votes
Accepted

Why is there a fee to import old transactions when using mymonero web wallet?

To add to what Jolly Mort correctly said (rescanning the blockchain is a heavy process on the server, which the Mymonero operators want to discouraged), it is possible to have a wallet created in ...
user36303's user avatar
  • 34.8k
5 votes
Accepted

Mymonero and simplewallet mnemonic seed compatibility

MyMonero uses 13 word mnemonic seeds and simplewallet uses 25 word mnemonic seeds. MyMonero can recover a wallet created in either format. Currently simplewallet can only recover wallets with 25 word ...
studycrypto's user avatar
  • 2,083
5 votes
Accepted

How to use my 13 word MyMonero mnemonic seed with the GUI/CLI without accessing MyMonero?

This is done as follows: Go to this page: https://github.com/luigi1111/xmr.llcoins.net/ Click on Clone or download and download the ZIP file. This ZIP file can be used offline if needed. In addition,...
dEBRUYNE's user avatar
  • 15.2k
5 votes

Can xmr.to work without javascript?

The frontend has been updated recently and does not redirect to the no-javascript version automatically if you have javascript disabled. This is clearly a mistake and should be fixed soon. For the ...
binaryFate's user avatar
4 votes
Accepted

Bitcoin vs Monero: What is better?

Ronrunner, you can't export Bitcoin to Monero, if that's what you're asking - you have to trade Bitcoin for Monero on an exchange, such as Poloniex or Bittrex. There are a number of differences ...
jwinterm's user avatar
  • 4,403
4 votes

How does mymonero web wallet work?

I don't know if it actually does that, but the client side code could generate key images when refreshing, and send them back to Mymonero, which can store them and look for them for then on. ...
user36303's user avatar
  • 34.8k
4 votes
Accepted

How much does Mymonero take as fees per transaction?

According to fluffyponyza the fee is 50% on top of the miner fee (with n fee when and it month hosting costs have been recovered: 50% on top of the miner fee, so the old fees were 0.01 XMR per kb, ...
neversleep's user avatar
4 votes
Accepted

Monero Applications Development

According to the bottom of this CoinTelegraph article: The Jaxx team clarified that they halted work on Monero due to recent protocol changes that caused difficulties, and because the integration ...
sgp's user avatar
  • 8,806
4 votes

How to create spend key and view key from public address

No. You can obtain them from the seed mnemonic (25 words) if you saved those. If it was possible from the address, then anyone could steal anyone's money. If you already created the wallet from the ...
JollyMort's user avatar
  • 19.9k
4 votes

XMR Blockchain NOT syncing beyond a particular Block 1400001

There was a protocol upgrade recently, and you're using an old version. Upgrade to latest version and it will continue syncing. How do I upgrade my software to v0.11.0.0?
JollyMort's user avatar
  • 19.9k
4 votes

MyMonero is down again, how do I get my money out?

Yes, it's possible to get it out, although the process is a bit complicated, because MyMonero does not use the standard 25-word seeds. Use https://xmr.llcoins.net to convert your MyMonero 13-word ...
lambshaanxy's user avatar
3 votes

Monero Applications Development

I don't believe it was due to a lack of API support since documentation is available. I've been able to interact with the daemon and monero-wallet-rpc using cURL from the command line and with PHP. ...
user3184415's user avatar

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