give it a week and one of their own pupils will probably use the script to make the ransomware. load it onto his colleges servers and ransom the college himself

Opt-in RBF fixes zero-fee transactions.


That much is true.

The University of Calgary in Canada has paid just over $15,000 (CAD $20,000) to restore access to its computer systems following a ransomware attack.

Ransomware typically, as its name would suggest, prevents a victim from acessing their files and other services until demands had been met. In this case, that meant paying $15,000 to restore access to emails and other files.

It’s not the first time a company or organization has caved in and paid a ransomware demand -a hospital in the US paid $17,000 in bitcoin – but you have to wonder if making it public is a smart move.

Being seen as a ‘soft target’ will surely  invite further attacks and demands for payment, as has also been the case with that hospital.[...]

Here are just a few that come immediately to mind.  There may be additional differences as well.

• Although it is generally best not to do so, it is possible to spend unconfirmed bitcoins.  It is not typically possible to spend the money from an uncleared check.
• It is quite easy to see in advance if it is extremely likely that an unconfirmed transaction will confirm.  It is typically very difficult to determine ahead of time if a check will clear.
• It is relatively easy for the sender to remove funds from an account before a check clears, while it is quite difficult to successfully double-spend a properly formed bitcoin transaction
• The properly formed bitcoin transaction will typically (more often than half the time) confirm in less than 10 minutes and rarely (if ever) take more than 120 minutes, while the uncleared check will take days to clear

A properly formed bitcoin transaction is much more analogous to a credit card transaction that has received approval from the processing company and has a valid looking signature on the receipt than to a check in the mail.

So you're saying the following:

• Double-spending a TX is easy and can be done by anyone
• It takes the same amount of time for a unconfirmed TX to get confirmed as it takes a check to be cleared.

Neither one is true.

Dropping a check in the mail is ~1-3 seconds too. Of course, the recipient won't be able to spend the money until the check clears, but that's no different from your unconfirmed transaction.

using blockchain.info still can spend an unconfirmed balance in the old version, don't know with the latest blockchain.info version but once the balance confirmed,the bitcoin which has been spent will get confirmed too and it doesn't take too many time sometimes

The future is finally here.

Stop with the false analogies. Bitcoin is faster than anything available from the traditional system.

Who says that you have to be able to spend that money instantly? I've used a lot of services which delivered the expected goods as soon as the TX arrived at their destination. You're comparing apples and tomatoes.

Wrong. Transaction time is: ~1-3 seconds. Confirmation time is: ~10 Minutes.

I am surprised that blockchain.info allows 0 fee transaction at all or at least without popping up a bunch or red warnings. That's the bus companies (wallets) fault, not surprised as i haven't heard anything good about their wallet for a while. You're trolling too hard transaction will eventually expire out of mempool but you probably already knew that (if you tried to get in without paying you might be stuck on the bus until they take you to the police station)

ETH will bounce around some more, but i wouldn't expect much more then +30% it feels toppy already.

BTC on the other hand has plenty of room to grow. +100-300% in the coming year for bitcoin, wouldn't surprise me.

I do wonder why big mining pools just don't give an option like hey for all those people who tried to get on a bus without paying the fare send us your transaction ID (tell us where you are) and pay fees (fine) to this new address and we'll try to include your non paying butt on the next bus we run

Should put an end to all these stupid posts. Oh you didn't want to pay for the ticket? Well go to this site to pay your $0.25 fine and it should be included in the next block they mine

How do you know i am not a women myself? Logic has no sex

Yeah, i just added an edit, thinking over again made obvious for me my own mistake Alas, i assume since bitcoin is a very high risk field, and males are in general tend to take higher risk as comfortable, that might be a good explanation why the male/female user ratio is as it is. Also, mathematics. :-D

Also, in general any new tech is first used by males disproportionally high, like, since fire?

Yeah i know it sounds very primitive. But, i am a scientist, i only look for the facts, and numbers, without social bullshit. There must be a very basic non biased reason why 99% of the bitcoin user/investor/developer community is made up of 20-45 human males.

I am not biased against "women bitcoining" -and it absolutely wouldn't matter what i think -, THEY themselves are. I mean, the blockchain does not care if you are an alien dog from the future, so there can not be any reason why women do not use/study bitcoin other patriarchy than they do not want to. So i just made a statistically relevant and probable observation about the equation women+bitcoin= 99% likely fubar.

Ahh cute analogy almost convinced me too, if not for AZwarel post above   but that's ok don't let that discourage your little heart. You just keep on trying.

The damn bus system is completely rigged though WTF bus driver wants me to pay when i get on?? Let's both get on bus forum and troll them to death who da f*ck they think they are!?!

Please help i've been stuck here for 5 days, i keep offering $1 to get in a taxi but so far no one has let me in!!! WHAT DO I DO?

I can not believe these stories about transactions going unconfirmed for days. Bullshit.

Of course, it is. People must finally understand that blockchain space is a limited and valuable resource. You have to compete to get included. And compete even more to get included fast!

If you're asking us how long it will take for the transaction to be added to a block: nobody knows... It can happen 10 seconds from now, or it can take several days (or more).
It's all pure luck. A miner decides which transactions he'll put in the block he's mining. He might chose your transaction, or he might chose somebody else's... A lot of times, miners chose the transactions with the highest fee per byte, some of them do make exceptions tough. Maybe one of the pool operators takes pitty and adds your transaction out of kindness, you never know

Good luck!