Hacking

[shorena]

-snip-
I see, well, dont print out sensitive info with 3rd party printers ever.

There are many shops that offer printing services, but one has to be a fool to print out sentitive data with them.

Only use your own printer (not even your neighbors) to print out sensitive data.

I agree, but I think thats where the fear printers might store the data comes from. If someone uses a printer at home and think it might still have sensetive data on it, they could just destroy the printer once its lifetime ended. I also doubt home use printers will have hard disks as they have next to no need to store a large amount of data and it would only increase the price per device.

You can always check the vendor's site and see what specs the printer have, my printer only has a cache that clears every poweroff (worse case scenario after 2 printings).

So if 1 print out a password, I can then print out a photo aftewards and the cache is overwritten.

I`m not sure why any other printer has hard disks, it has no sense, you can just store the config of the printer on your OS with the printing software that you got with the printer. No need to put separate harddisk in the printer itself.

Its very insecure architecture then,

Im talking about something like this



they will store large amounts data and transfer (or recieve them) over a network connection. Sometimes from several users at once and significantly over 100 pages. A harddisk is just a cheap way to store that data. Due to the nature of harddisks the data is available from a long time after it was needed last (unless overwritten).

[RealBitcoin]

-snip-
I see, well, dont print out sensitive info with 3rd party printers ever.

There are many shops that offer printing services, but one has to be a fool to print out sentitive data with them.

Only use your own printer (not even your neighbors) to print out sensitive data.

I agree, but I think thats where the fear printers might store the data comes from. If someone uses a printer at home and think it might still have sensetive data on it, they could just destroy the printer once its lifetime ended. I also doubt home use printers will have hard disks as they have next to no need to store a large amount of data and it would only increase the price per device.

You can always check the vendor's site and see what specs the printer have, my printer only has a cache that clears every poweroff (worse case scenario after 2 printings).

So if 1 print out a password, I can then print out a photo aftewards and the cache is overwritten.

I`m not sure why any other printer has hard disks, it has no sense, you can just store the config of the printer on your OS with the printing software that you got with the printer. No need to put separate harddisk in the printer itself.

Its very insecure architecture then,

Im talking about something like this

---
they will store large amounts data and transfer (or recieve them) over a network connection. Sometimes from several users at once and significantly over 100 pages. A harddisk is just a cheap way to store that data. Due to the nature of harddisks the data is available from a long time after it was needed last (unless overwritten).

So its a network printer, well that is absolutely not good, and not secure.

That is a huge and direct attack vector, and possible exploits could exist, where hackers could grab your printers cache and send it to them via internet.

Nope, dont use that folks.

[Laosai]

I keep seeing all these posts that someone can hack my wallet.  First I did not think that this could be done?  If it can be done, how can I prevent it from happening?  Does my wallet need to be online in order for them to be able to hack it or can they still hack a paper wallet?

Your wallet can't be hacked, your pc can.
A wallet is totally secured, it would cost billions time more energy to hack it than what there is inside even if you earn thousands of btc.

But your pc can get a trojan installed or a keylogger then someone will access manually to your wallet, but the same way they could (and they will) access your bank accounts in fact.

[Paracelsus]

Think we have more people's stupidity than hacking special abilities..

[john2231]

Hacking is not the good way to have bitcoins you will be in prison if you do that its better to find another skills like making a website seo or service that you can promote a site.. Or join ins signature campaign to earn some bitcoins..

[Amph]

-snip-
I see, well, dont print out sensitive info with 3rd party printers ever.

There are many shops that offer printing services, but one has to be a fool to print out sentitive data with them.

Only use your own printer (not even your neighbors) to print out sensitive data.

I agree, but I think thats where the fear printers might store the data comes from. If someone uses a printer at home and think it might still have sensetive data on it, they could just destroy the printer once its lifetime ended. I also doubt home use printers will have hard disks as they have next to no need to store a large amount of data and it would only increase the price per device.

You can always check the vendor's site and see what specs the printer have, my printer only has a cache that clears every poweroff (worse case scenario after 2 printings).

So if 1 print out a password, I can then print out a photo aftewards and the cache is overwritten.

I`m not sure why any other printer has hard disks, it has no sense, you can just store the config of the printer on your OS with the printing software that you got with the printer. No need to put separate harddisk in the printer itself.

Its very insecure architecture then,

Im talking about something like this

---
they will store large amounts data and transfer (or recieve them) over a network connection. Sometimes from several users at once and significantly over 100 pages. A harddisk is just a cheap way to store that data. Due to the nature of harddisks the data is available from a long time after it was needed last (unless overwritten).

So its a network printer, well that is absolutely not good, and not secure.

That is a huge and direct attack vector, and possible exploits could exist, where hackers could grab your printers cache and send it to them via internet.

Nope, dont use that folks.

well none is using somethign like that for papaer wallet, we use something more personal more small, like any small canon printer or epson

as long as it's for personal usage, i don't see the issue with the memory cache

[romero121]

This is the high risk that bitcoin is facing. Hacking is very serious issue, even there are hackers who are into teaching users how to hack and get into someones account for certain fixed amount. Once a person gets into it he does it continuously which make him master in it. So to get rid of it using offline wallets are better.

[coaltin]

Well, if a user’s account and password got hacked and he/she did not have ‘two factor authentication’, then he/she does not have a strong position to talk to his/her exchange but I think such a user could at least try to do the blockchain analysis

[Decoded]

If you're using bitcoin core, I'd recommend encrypting your wallet.dat file with a password, and encrypting your whole wallet with Veracrypt. It might have flaws, but another layer of security will still slow down any attacker.

I simply use the HW.1 Ledger hardware wallet, it's pretty safe.

[RealBitcoin]

-snip-
I see, well, dont print out sensitive info with 3rd party printers ever.

There are many shops that offer printing services, but one has to be a fool to print out sentitive data with them.

Only use your own printer (not even your neighbors) to print out sensitive data.

I agree, but I think thats where the fear printers might store the data comes from. If someone uses a printer at home and think it might still have sensetive data on it, they could just destroy the printer once its lifetime ended. I also doubt home use printers will have hard disks as they have next to no need to store a large amount of data and it would only increase the price per device.

You can always check the vendor's site and see what specs the printer have, my printer only has a cache that clears every poweroff (worse case scenario after 2 printings).

So if 1 print out a password, I can then print out a photo aftewards and the cache is overwritten.

I`m not sure why any other printer has hard disks, it has no sense, you can just store the config of the printer on your OS with the printing software that you got with the printer. No need to put separate harddisk in the printer itself.

Its very insecure architecture then,

Im talking about something like this

---
they will store large amounts data and transfer (or recieve them) over a network connection. Sometimes from several users at once and significantly over 100 pages. A harddisk is just a cheap way to store that data. Due to the nature of harddisks the data is available from a long time after it was needed last (unless overwritten).

So its a network printer, well that is absolutely not good, and not secure.

That is a huge and direct attack vector, and possible exploits could exist, where hackers could grab your printers cache and send it to them via internet.

Nope, dont use that folks.

well none is using somethign like that for papaer wallet, we use something more personal more small, like any small canon printer or epson

as long as it's for personal usage, i don't see the issue with the memory cache

If you use electrum, with seed as a password , which is a passphrase made up of 13 random words.

Then all you need is a pen and paper, or memorize it. It's easy to write down words.

But if the private key is just random characters, then its bad, that needs to be printed out, to avoid misspelling which could cost you your savings.

[Herbert2020]

This is the high risk that bitcoin is facing. Hacking is very serious issue, even there are hackers who are into teaching users how to hack and get into someones account for certain fixed amount. Once a person gets into it he does it continuously which make him master in it. So to get rid of it using offline wallets are better.

but this is not limited to bitcoin, all the online activity that one does is susceptible to hacking. this can be using bitcoin or using your credit card information. there is a lot of stories about stolen credit cards and all the money laundering that robbers do with those information like buying goods with stolen credit card and selling it for cash.

[jamalaezaz]

I keep seeing all these posts that someone can hack my wallet.  First I did not think that this could be done?  If it can be done, how can I prevent it from happening?  Does my wallet need to be online in order for them to be able to hack it or can they still hack a paper wallet?

paper wallet is secured to be hacked. if you worried about your online or desktop wallet. than go for a paper wallet.

[aardvark15]

Be careful with exchanges.  You never know who to trust.  If you use one, don't put much on it.  I lost some bitcoins in Cryptsy.

[Shinpako09]

Hacking is very hard to prevent once they target and focus on yours. The best thing you can do is to split your bitcoin into different addresses you have.

[mamansuherman]

Hacking is very hard to prevent once they target and focus on yours. The best thing you can do is to split your bitcoin into different addresses you have.

yes it was one of the best ways, do not save all bitcoin on one wallet and also do not forget to always use double security.

[Aamir1]

Hacking is very hard to prevent once they target and focus on yours. The best thing you can do is to split your bitcoin into different addresses you have.

That's right, if you are targeted by a hacker then you can't really save yourself forever, he will not leave you if he see much coins in your wallet, better to split them in different wallets and different places, keep some in cold wallets and some in online wallets. You will feel safer that way.

[Aamir1]

Hacking is very hard to prevent once they target and focus on yours. The best thing you can do is to split your bitcoin into different addresses you have.

That's right, if you are targeted by a hacker then you can't really save yourself forever, he will not leave you if he see much coins in your wallet, better to split them in different wallets and different places, keep some in cold wallets and some in online wallets. You will feel safer that way.

To be fully safe from a hacker get a paper wallet and put all of your funds onto it, That way a hacker will have zero chance of stealing your coins unless he breaks into your house and knows exactly where to look.

Well i myself never used a paper wallet and i even have no idea about it actually works or how to use one, but it is also safe to split your coins in different wallets because if one get hacked then your other coins will be safe, and try to split them in small parts as you could lose much if any of them get hacked in case.

[btcltccoins]

Spliting coins in different online wallet is a good idea. Also i recommend to use a strong password.
and never share your password with anyone. Most of the time Hacking is done because of our lack of responsibility.
Follow the best principles of Passwords and your wallet will be safe.

[CryptoGore]

Always secure in offline your private keys or backups.

Never trust any other website which hold your BTC 100%, cuase we seen to many times exchanges and many other services going down with all the investor money.

And to reply to your question an hacker could stole your wallet really easy, so at least protect with a good password, so that it will be nearly impossible to break if it is enough resistant.

[john2231]

Always secure in offline your private keys or backups.

Never trust any other website which hold your BTC 100%, cuase we seen to many times exchanges and many other services going down with all the investor money.

And to reply to your question an hacker could stole your wallet really easy, so at least protect with a good password, so that it will be nearly impossible to break if it is enough resistant.

I think offline is the best to hold bitcoin. Yeah it is true don't trust any website which hold your bitcoins also the online web wallet there's a possibility that the site will be down and they will announce that their website is hacked..
So offline wallet is still the best to hold bitcoins. and secured it. So that you are in far from hackers..