YEAH! We definitely need Altcoin No. 1501 urgently. Make sure you have clueless developers and keep your low budget, because it's better to have real people in a project, than some experienced Big Mac eating computer nerds. Power to the poor!!!
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OP lost 24 BTC and is asking for a way to see the transaction? GTFOH!
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Do they claim their hardware to be unhackable!?
More or less they were claiming that it's unhackable, and that's my only issue with them. https://www.ledger.fr/2015/03/27/how-to-protect-hardware-wallets-against-tampering/There is absolutely no way that an attacker could replace the firmware and make it pass attestation, without knowing the Ledger private key. This claim was proven false now. Nevertheless in my opinion I still think a hardware wallet is more secure than any other wallets when used safely. Just that hardware wallets do have security issues does not make any other type of wallet which have MORE security issues suddenly better. My ranking of wallets in terms of security would be the following - Hardware wallets
If you don't take them outside of your home and attacker don't get physical access they are pretty safe -> with physical access as proven now it might not be safe - Paper wallets
If they are kept hidden in a secret place -> but with physical access by an attacker -> no security at all. If people carry them around I consider them worse than any mobile wallets (they do at least have a pin to secure the wallet). - Airgapped PCs
Pretty safe as long as an attacker don't get pyhsical access. I consider them worse than a hardware wallet because a PC/MAC/whatever even if not connected to the big world has a much bigger attack vector than a hardware wallet if getting pyhsical access. - Any local hot wallets on PC/MAC
With spyware or other malicious software these wallets can be easily compromised. No physical access necessary - Any mobile wallets
The security of such wallets is usually quite bad. Usually very short pin-codes are used to secure the wallet. As it's easy to lose them an attacker can get physical access to it. - Online wallets where you control the private keys
- Online wallets where you don't control the private keys
Did I miss any type of wallet?Beside of my listed ranking anyone can (and should) improve the security by combining several methods above and use multi signature addresses. In this case it is not possible to steal funds if just one of the methods is compromised. Would be interested if someone has a different ranking than me. You indeed did forget the most important and still the most secure: Bitcoin Core and all the other open source software where you download the entire blockchain and where you can encrypt the wallet. Just a few additions: Paper Wallets can be encrypted, which makes it more secure than cash, but still is open to a regular robbing with weapon use (Tell the password or die), but the main problem I think is that it can be destroyed very easy. An encrypted wallet.dat fie can be renamed into Michael_Jackson-Earthsong.mp3 and you carry it around (or send it around). Place another unchanged and unencrypted wallet.dat file with a low amount for plausible deniabiity. There are other plausible deniability solutions like hidden partitions etc. Multiple backups make a file pretty much undestroyable.
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In bitcoin's pyramid scheme, criminals have exploited the greed of people's ignorance and dreams of the currency. The essence of pyramid selling is a ponzi scheme, where a bitcoin is not fundamentally different from a tulip or a box of cosmetics.
In the event of an hacker blackmail, criminals use the anonymity of the currency, trying to escape legal sanction, COINS and cash here, there is no essential difference between just more convenient, lower cost.
In money laundering, drug trafficking, and terrorist crimes, criminals use the anonymity and high mobility of bitcoin to hide the flow of funds, which is the same as the effect of using cash.
In bitcoin fiat's pyramid scheme, criminals have exploited the greed of people's ignorance and dreams of the currency. The essence of pyramid selling is a ponzi scheme, where a bitcoin fiat is not fundamentally different from a tulip or a box of cosmetics. In the event of an hacker blackmail, criminals use the anonymity of the currency, trying to escape legal sanction, COINS and cash here, there is no essential difference between just more convenient, lower cost. In money laundering, drug trafficking, and terrorist crimes, criminals use the anonymity and high mobility of bitcoin fiat to hide the flow of funds, which is the same as the effect of using cash.
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Just because there are vulnerabilities found does not mean that they are inherently insecure. Do you say the same things about software wallets too (many of which have had vulnerabilities found and patched, just like with these hardware wallets)? Do you say the same thing about the general purpose computer you use which you don't even know how it works? Every piece of software and many pieces of hardware will have some vulnerability found in them; given enough time, it's almost inevitable. Worth mentioning, that the guy who found this exploit is 15 ys young.
That's slightly misleading. This 15 year old has dedicated a lot of time into working on hardware wallets, particularly in their firmware. He's been involved in numerous other vulnerability discoveries in the past with Trezors (and possibly Ledgers). The kid is very smart, probably smarter than you when it comes to hardware wallets. He's not just some random 15 year old who found this; he actually dedicated a lot of time into learning about how hardware wallets work and has been working with them for years. ... Yes, I think hardware wallets are indeed inherently insecure, just like any SPV wallet. I also call every cryptocurrency exchange inherently insecure even though it might not have been hacked until now. I don't know how you come to the conclusion, that I don't know how a computer works, but anyway ... just the knowledge about how it works, might still not be enough to trust it 100%, but I guess we have not much of choice until we see open source chip production. One good example is the latest Intel issue and I am sure there will be more to follow. Btw I have addressed this one already a few postings before in this topic: .... Of course, the fact that we have to use closed source computers to run Bitcoin Core, makes it impossible to be 100% safe esp. against state actors.
... Of course, the fact that we have to use closed source computers to run Bitcoin Core, makes it impossible to be 100% safe esp. against state actors.
You don't have to use a closed source OS. You have decided for yourself to use closed source software. Everyone is free to use the software he wants. There are a lot of open source linux distributions available on the internet. I didn't say 'closed source OS' but 'closed source computers'. No problem. Misreading can happen.
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Can't wait to see the answers from the young bloods. So much ahead of its time.... ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) I will take the bait since my name is already on your ignore list ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) ...I guess it entered when I made a comment on one of your threads regarding block size increase, maybe you didn't like it ![Tongue](https://bitcointalk.org/Smileys/default/tongue.gif) I went through the list, almost 80% of Sig campaigners are on the list. Are all these spammers? I joined a Sig campaign after I became a hero member, not justifying my poor post quality, just saying, no offense taken being on your ignore list ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Went through all the posts on this thread, majority have just grasped the title without taking a glance at the content ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) ...Sig spammers indeed. ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) You have been on the list because of the paid sig. You have been uningnored and merited. Thanks for your comment.
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So what ways of keeping bitcoins safe do you recommend then? Many people consider hardware wallets as something that is not possible to breach because they were told so. In both Ledger and TREZOR there were discovered vulnerabilities which allowed potential attacker to extract the seed. I haven't heard of any issues with KeepKey. I was thinking of using an air-gapped computer for storing large amount of BTC and a hardware wallet in case I needed to travel and have some bitcoin with me just in case. Have you ever used any hardware wallet?
I think it is good to reduce the attack vectors to a minimum. Bitcoin Core for example is a software that I trust. It is open source and some of the best developers (that I trust) are revisiting the code. So if you use an encrypted Bitcoin Core wallet with a very strong password for your cold storage, you should feel a lot safer, than with any hardware solution. Of course, the fact that we have to use closed source computers to run Bitcoin Core, makes it impossible to be 100% safe esp. against state actors.
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Though I am pretty sure, that no one uses the blockchain to find CP or other illegal content, what about the simple fact, that people could - in theory - access illegal data, which creates a legal attack vector for states to criminalize Bitcoin users. First subpoenas could be send to providers of SPV wallets, whose servers might have to be shut down.
Edit: Flooding the Blockchain with illegal content can be done to force decisions in favor of a criminalization.
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There is a little error in the study: This does not come without risk for users as each participant has to locally replicate the complete blockchain, particularly including potentially harmful content. Users don't need to replicate the complete blockchain. This only applies to full nodes.
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https://fc18.ifca.ai/preproceedings/6.pdfAbstract. Blockchains primarily enable credible accounting of digital events, e.g., money transfers in cryptocurrencies. However, beyond this original purpose, blockchains also irrevocably record arbitrary data, ranging from short messages to pictures. This does not come without risk for users as each participant has to locally replicate the complete blockchain, particularly including potentially harmful content. We provide the first systematic analysis of the benefits and threats of arbitrary blockchain content. Our analysis shows that certain content, e.g., illegal pornogra- phy, can render the mere possession of a blockchain illegal. Based on these insights, we conduct a thorough quantitative and qualitative anal- ysis of unintended content on Bitcoin’s blockchain. Although most data originates from benign extensions to Bitcoin’s protocol, our analysis re- veals more than 1600 files on the blockchain, over 99 % of which are texts or images. Among these files there is clearly objectionable content such as links to child pornography, which is distributed to all Bitcoin partic- ipants. With our analysis, we thus highlight the importance for future blockchain designs to address the possibility of unintended data insertion and protect blockchain users accordingly. 6 Conclusion The possibility to store non-financial data on cryptocurrency blockchains is both beneficial and threating for its users. Although controlled channels to insert non- financial data at small rates opens up a field of new applications such as digital notary services, rights management, or non-equivocation systems, objectionable or even illegal content has the potential to jeopardize a whole cryptocurrency. Although court rulings do not yet exist, legislative texts from countries such as Germany, the UK, or the USA suggest that illegal content such as child pornography can make the blockchain illegal to possess for all users. As we have shown in this paper, a plethora of fundamentally different meth- ods to store non-financial–potentially objectionable–content on the blockchain exists in Bitcoin. As of now, this can affect at least 112 countries in which pos- sessing content such as child pornography is illegal. This especially endangers the multi-billion dollar markets powering cryptocurrencies such as Bitcoin. To assess this problem’s severity, we comprehensively analyzed thequantity and quality of non-financial blockchain data in Bitcoin today. Our quantitative analysis shows that 4 % of the roughly 251 million transactions in Bitcoin’s blockchain carry arbitrary data. We could retrieve over 1600 files, with new con- tent infrequently being added. Despite a majority of arguably harmless content, we also identify different categories of objectionable content. The harmful poten- tial of single instances of objectionable blockchain content is already showcased by findings such as links to illegal pornography or serious privacy violations.
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Bitcoin is on a bullrun since 2009
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Bitcoin is fun, isn't it?
Kind of game changer I would say. It can suck your balls out and can excite you at anytime in the future. They were right when they said it is roller coaster ride and its so wavy that it could get off the rail track. Lolz. Looks like it is dead end for the bitcoin but as we know whenever we think that its end of the bitcoin then it starts with new life and whole new track of upward movement. However this time it has gotten real nasty and its really not funny how it dropped all the way down from 20K to 8K now. Thats really worrying thing soft hearted. I don't think that this can be called nasty. Bitcoin was less than 1000$ not too long ago. To me it's still a 750% raise in 1.5 years, which is a pretty high ROI if you are an investor.. You should ask yourself the question, why Bitcoin jumped to this ath prices. Wasn't it obvious, that a correction will happen and that it will burn some fresh money? As for me, I was pretty sure it would happen, just like the new panic postings after it.
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Bitcoin is fun, isn't it?
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Wow,I think you have to carefull when click anylink on internet
I think this was the first ever advise when the internet has started. Like Bob Kahn saying to Vint Cerf (spells 'surf'!) 'Be careful when clicking a link'
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... This website doesn't actually have 904625697166532776746648320380374280100293470930272690489102837043110636675 pages stored to disk, as that would take up quite a bit of space. ...
Nice posting, but ... "Quite a bit of space" sounds, like it is possible to store all the data somewhere. Just to imagine: You'll probably use a fast high end SSD to store all the the addresses, which would mean that - there is not enough space on earth for all these SSD's (not counting the computers to run them). - there is not enough energy available to run these SSD's.
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Somewhere within last year, Bitcoin could rise as high up to almost $19,000 and this massive rise stirred up the interest and enthusiasm of investors. Few weeks later, Bitcoin began to experience gradual drop in price and now struggling to regain the position of the almost $19,000. The question is: What is causing the drop in BTC? is Bitcoin ever going to regain that position and even beyond again? and if yes, when?(prediction)
Check threads from 2013 to see the same topics as yours. Price wentdown from 1200$ to 100$ and people asked the same questions. Edit: The answers also were the same.
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OP forgot the most important reason why to invest in Bitcoin: Outstanding new technology that impacts the financial world
edit: Current price is meaningless...
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