Bitcoin Forum

Can Bitcoins be hacked?

Your wallet where you keep your Bitcoins could be hacked. Also the exchangers. There is always a risk, nothing is 100% secured.

Bitcoin as a network, i.e. the peer-to-peer currency is currently not hackable. The only thing that can happen is this:

However, this has nothing to do with network vulnerabilities.

Yeah, bitcoin can be hacked but on bitcoin wallet, many people get hacked on their bitcoin wallet via ransomware or other can steal their bitcoin wallet id and password. it's most commonly way to hacked bitcoin. maybe have some another way to hack bitcoin but I don't know about it. ???

your question is unclear. what do you mean by "bitcoins" and what do you mean by "hacked"?

bitcoin wallet can be hacked, you can lose the private key, password to the wallet (web or desktop wallet) so the hacker can steal your coins.

if you mean like brute forcing the private key to access the bitcoins that is in a particular address then no.

This question lacks context. Bitcoin is a currency, how can you hack a currency? If you were talking about the bitcoin network, a lot of time has passed and I'm pretty sure that there are tons of hackers out there who tried to find a glitch in the bitcoin's network. Still, the network is secure and unhackable.

If you were talking about your bitcoin wallet, yes you can be hacked especially if your password isn't a unique password and isn't secure. You should enable 2FA so that hackers won't be able to use your account even if they figured out your password.

Bitcoin is an online cryptocurrency with peer to peer network. A currency cannot be hacked, but the bank, people's accounts, and escrows may prove scam. However, if you are open to the deep web you will find people using bitcoin which is secure for anonymity, and easy to store transfer and use.

The answer can be both, No and Yes.

No, because bitcoin is not in anyone's control, it can't be hacked.
Yes , because bitcoins are mostly stored in various wallets, and wallets are softwares or apps. so these can be hacked. in that manner bitcoins can be hacked. so be safe with your bitcoin and store them carefully with all securities.

Well it depends if bitcoin itself it can't be hacked by anyone except the creator i think.but it is impossible to be hack.
Bitcoin wallet can be hack ,becase bitcoin wallet are just sites and application as said that can run or steal our bitcoins anytime.so it is advisable to use the trusted wallets or hardware.

No it can't be hacked, i think your hack term is related to finding private key of bitcoin address for that millions of computer have to compute for millions of years to find out that. Although there are some hype about quantum computer can do this, but i personally don't think quantum computer will be out within few years.

I think it's possible, as long as there is internet I think everything can be hacked. But do not worry, you can still use bitcoin safely. Maybe you can use the wallet of blockchains.info because I think their security is guaranteed, but nothing is 100% perfect you know :D thank you

Your bitcoin wallet can get hacked if you aren't careful but the technology itself the blockchain & the whole network can't get hacked.
Someone started this Threats to bitcoin discussion (https://bitcointalk.org/index.php?topic=1143096.0;all), check that out if you are more interested in such.

This pretty much sums it up.

I would also warn everyone to check for malicious browser plug ins, some even slip into the Firefox and Chrome repo's, they can detect and change when you copy a wallet address, so always check if you're pasting the correct address.
And phishing is also pretty common through fake emails from exchanges for example, always check the URL. 

there is no secure data on the internet, so many great hackers out there, and all possibilities can occur. I think bitcoin can be hacked, but I guess bitcoin security system is currently very good, so it will be difficult

I think it is hackable only in the cases when you have weak security to your wallets especially online wallets where a person can access to your wallet just by knowing your wallet password and username/email/pin etc to that wallet.

The better thing is that you have to make a secure password for your wallet and do not give acces to it to other, and in some cases the hackers ask for a file to download these are actually the viruses which leak out your typing data from your keyboard and so in that way the hackers hack your login details, so try to avoid people and offers like that.

everything can be hacked, and bitcoin can be accessed on the dishonest way.

In short description, it may happen only when someone will have under its control 51% of the entire Blockchain power.
Of course it is still possible to hack your password to the wallet if it is not strong enough, or someone can provide to your PC malware and "steal" your wallet.

you can not hack a decentralized environment, here we would end in the long talk about how you can thoretically stop every computer on the planet to stop bitcoin

if the topic is talking about that in the end

anyway if a quantum computer would exist now, it might put some danger in the remote case your public key is leaked, thus it may be possible to retrieve the private key from it, this is the only possibility to "hack" bitcoin at the moment"

If I'm not mistaken, I think that there is a possibility for the blockchain network to be hindered useless or vulnerable to attack if the network hash rate is low enough... but it would be a very expensive and energy consuming feat by one person to do if they were to do it now since there is a lot of powerful miners being pointed to the bitcoin network.

everything is "unhackable" till someone hack.

What should be said is: till today, seems impossible. people are trying every day and nobody ever achieved.

AND
there is a huge different in hack you and get your bitcoins, or hack bitcoin network to get bitcoins.

As long it is made by man, it can be manipulate, change, modify, hack by man.
But it will be a of matter of time before someone can do that.

I don't know what kind of 'hack' we're talking about here but yes, bitcoins in generally can be hacked more or less. If you leave your address and private key lying somewhere recklessly unattended, then your account can highly likely be hacked.

But if we're talking about the blockchain, I'm guessing it's nearly impossible to do that. It's not completely impossible, but nearly. As in there's almost no way you can hack into that blockchain and sneak in a fake record.

I don't know can bitcoin wallet got hacked. But if you use the exchanger could be a scam. To prevent that enable 2FA features in your wallet.

We are talking about two things here, when you say "Bitcoin" :

1. Can the Bitcoin protocol be hacked. short Answer : No - Because it's decentralized, nobody will accept changes to the code, without validating it. People can decide if they want to run the code being

    distributed. If the majority do not accept it, the changes will not be made to the Bitcoin network. {Nobody can sneak in malicious code, because there are too many people watching}

2. Can the services built on top of Bitcoin be hacked? - Yes - This is 3rd party services and not part of the core protocol. It's like saying ....If Amazon are hacked, were PayPal or credit card companies

    also hacked? It's 2 separate entities.

I hope you get what I am saying.... This is often confused by the media and people who do not know a lot about Bitcoin. Example : If Xapo {A wallet service} is hacked, Bitcoin cannot be blamed... they

are just using Bitcoin {The technology / currency token } on their service.   

well bitcoins can possibly be hacked at some point in the far future when the computers will be far better than they are now but it will take hundreds of years in my opinion

though your wallet can surely be hacked if its not a cold storage wallet, there were people who were complaining about their wallets on blockchain.info being hacked, though i have never faced it myself

yes it can hacked from some ways,bitcoin can hacked from your wallet,its happen if you not put complete security in your wallet,basicly its wallet hacking,not a bitcoin hacking,so far nothing can hack bitcoin as stand alone technology.

this question pops up way too commonly lol :P. your btc balance is linked to your private key. and there are a finite number of keys so yes your balance can be hacked. but the probability is just so so small that you shouldnt worry about it.

You're talking about bruteforcing, but that's most unlikely thing that will happen. afaik almost all thefts happen when user picks up some trojan.
From there everything goes sideways, but hacking/cracking private key by bruteforce just isn't worth worrying about, for now.

As a crypto currency you cannot hack the BTC in other words its online currency which was created with some mathematical type. There possibilities to hack BTC wallet or private key if you question is about BTC wallet.  Also I’ve heard from my friend that we need some more super computer to hack BTC and that will take more BTC value than you want get by hacking. so probably no one will do.

The part with the super computer is not that far in the future. I remember reading some article that by 2030, there may be some concern about "hacking" the private keys of satoshi or something and that is the only thing (except the wallets) that can be "hacked" in the blockchain. Anyway I'm quite sure if even such computers exist in the near future, a new system will be implemented that will be more secure and even those quantum PC's wont be able to break it.

I cringe every time I see a thread titled "How many bitcoin do you own?" or "What bitcoin wallet do you use?" or "Are you holding or spending your bitcoin?" or "Where do you find bitcoin faucets?" or any other of a million titles a clever scammer / hacker might use in order to learn all he will ever need to scam / hack all of your bitcoin away.

I'm not a hacker or coder or anything computery, but if I were, then I'd post a few threads like those mentioned above, and I'd bet that at least one forum member inadvertently tells me what kind of operating system he uses, which wallet software he's using, how many bitcoin he owns, how he has those bitcoin distributed among his software, hardware, and paper wallets, what times he's usually at his computer, which online links he's most likely to click on and download, and a ton more super hackery information. (It's crazy how much info we give away without knowing it.)

Just be careful what information you share in a public forum, and you'll be fine.

Nothing can stop the super clever professional hackers if they really want your bitcoin (or any other valuable information), but you don't have to help them, either.

Regards,
Me

If youre pertaining to bitcoin network bein hacked i think that is imposible because of bitcoin networks security.But bitcoin itself cannot be hack its your wallet that is vulnerable of hacking and your bitcoins vulnerable of bein stealed.Yes wallets online are not that secured to be not hacked by professional hackers online now.It just easy to decrupt for them

Hypothetically you could hack the network, realistically you'd have an insanely difficult time doing it and it next to impossible if you were to even attempt it.

As for hacking the wallets, it's basically a game of chance but I saw an infographic that it is also basically impossible to hack a wallet's private address with today's computing power. So your Bitcoin are safe unless you screw up, get a virus, or just pure blind and dumb luck with a one in a trillion chance.

the safety is determined based on what you do. for example if you are careless about your own safety then it is not even 10%. you can make it as safe as possible and reach the 100% mark eventually, for example in bitcoin you can do this by making a cold storage and keeping it cold.

Due to shor's algorithm, ECDSA used in Bitcoin address key pair can be hacked (ie. deriving the private key from the public key). In the early stages of Bitcoin, P2PK is used as a way to pay to Bitcoin address this makes them vulnerable to such attacks. Bitcoin address reuse can cause a problem too. The coin generated from gensis block cannot be spent so that is safe. Theoretically, we can lock the address which are vulnerable to such attacks down but that isn't practical. I believe we can shift to another algorithm before this gets compromised.

It takes a few weeks to crack a single address so it is still quite expensive and Bitcoin addresses won't be the first one targeted.

I don't know about the vulnerability of Bitcoin network. But, if you're careless about your wallet, you're most vulnerable to  Trojans and some harmful malware. So Bitcoin might be hacked (?).

the only way it can be hacked when you give your private keys of your wallet also when your to dumb enough to give your wallet to others. also one thing if bitcoin is hackable then the hacker would be the richest man on earth.

Bitcoin can be hacked, No system is safe , If you have a lot of bitcoin your bitcoin wallet may be targeted by the hackers. Bitcoin can possibly hacked by Hackers

Yes it van be hacked, but its very difficult to hack, the wallet that you used is provided with high security
Usually the problem of people's wallet being hacked not come from the wallet, its because they were being scammed using phishing site and other scam technique not because the wallet is not secure

It is possible although it is highly unlikely. If you're just trying to hacked the private key, then to be honest with the current technology it's not going to get hacked in a long time.

But it is possible to have your computer hacked, and your coins accessed.

So this means if ever i store big money i have higher chance of being hacked?

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Yup. But today, it's almost impossible, the security right now is very stable. Not like on the first 2 years of the bitcoin industry, there are so many cases of bitcoin hacking and stoling form the owner. But the hackers can't do that one today. We have so much internet security to defend from hackers and any other attacks.

I have many comments in bitcoin wallet hacking and losing up. Well am cofident that i wont lose my private key and credentials. Is there any safest wallets or any precautions to avoid such problems. If so can anyone advise what are those?

More than likely your wallet will be hacked by someone who knows your password or a keylogger will get into your system but bitcoin itseld is currently completely unhackable, and the best have tried....