Hacking - page 2. | Bitcointalksearch.org

jamalaezaz

copper member

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Quote from: xmax on January 02, 2016, 10:41:07 PM

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.

Herbert2020

legendary

Activity: 1946

Merit: 1137

Quote from: romero121 on February 09, 2016, 03:36:31 AM

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.

RealBitcoin

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Activity: 854

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JAYCE DESIGNS - http://bit.ly/1tmgIwK

Quote from: Amph on February 09, 2016, 03:32:52 AM

Quote from: RealBitcoin on February 06, 2016, 01:48:09 PM

Quote from: shorena on February 06, 2016, 01:46:02 PM

Quote from: RealBitcoin on February 06, 2016, 11:00:38 AM

Quote from: shorena on February 05, 2016, 12:39:44 PM

Quote from: RealBitcoin on February 05, 2016, 08:55:57 AM

-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.

Decoded

legendary

Activity: 1232

Merit: 1030

give me your cryptos

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.

coaltin

sr. member

Activity: 392

Merit: 250

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

romero121

legendary

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Vave.com - Crypto Casino

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.

Amph

legendary

Activity: 3248

Merit: 1070

Quote from: RealBitcoin on February 06, 2016, 01:48:09 PM

Quote from: shorena on February 06, 2016, 01:46:02 PM

Quote from: RealBitcoin on February 06, 2016, 11:00:38 AM

Quote from: shorena on February 05, 2016, 12:39:44 PM

Quote from: RealBitcoin on February 05, 2016, 08:55:57 AM

-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

john2231

hero member

Activity: 924

Merit: 1001

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..

Paracelsus

sr. member

Activity: 347

Merit: 250

Activity: 2017

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

Laosai

sr. member

Activity: 462

Merit: 250

Quote from: xmax on January 02, 2016, 10:41:07 PM

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.

RealBitcoin

hero member

Activity: 854

Merit: 1009

JAYCE DESIGNS - http://bit.ly/1tmgIwK

Quote from: shorena on February 06, 2016, 01:46:02 PM

Quote from: RealBitcoin on February 06, 2016, 11:00:38 AM

Quote from: shorena on February 05, 2016, 12:39:44 PM

Quote from: RealBitcoin on February 05, 2016, 08:55:57 AM

-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.

shorena

copper member

Activity: 1498

Merit: 1528

No I dont escrow anymore.

Quote from: RealBitcoin on February 06, 2016, 11:00:38 AM

Quote from: shorena on February 05, 2016, 12:39:44 PM

Quote from: RealBitcoin on February 05, 2016, 08:55:57 AM

-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

hero member

Activity: 854

Merit: 1009

JAYCE DESIGNS - http://bit.ly/1tmgIwK

Quote from: shorena on February 05, 2016, 12:39:44 PM

Quote from: RealBitcoin on February 05, 2016, 08:55:57 AM

-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,

Cyaren

sr. member

Activity: 294

Merit: 250

Quote from: xmax on January 02, 2016, 10:41:07 PM

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?

Anything could be hacked, not just bitcoin wallets. Bitcoin wallets are obviously harder to crack than normal passwords since the length is much longer + the characters are completely random.

If your wallet is online then it'll stand a much higher chance of being hacked, however even offline wallets can be cracked using brute force methods...

arbitrage

hero member

Activity: 560

Merit: 500

And one day you just enter again your username and pass on web and soon
you realise you can't connect anymore to your account..One small mistake and you won't notice.
Phishing is worst of all i think!

romero121

legendary

Activity: 3234

Merit: 1214

Vave.com - Crypto Casino

These days it very difficult to hack and spend bitcoins in this technology.
Accounts gets hacked only if online wallets are preferred. Now most has
a offline wallet like electrum. So the risk of hacking is found to be very
less. Even it has got various authentication features in online wallets
too which won't be that easy for hackers to enter.

shorena

copper member

Activity: 1498

Merit: 1528

No I dont escrow anymore.

Quote from: RealBitcoin on February 05, 2016, 08:55:57 AM

-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.

RealBitcoin

hero member

Activity: 854

Merit: 1009

JAYCE DESIGNS - http://bit.ly/1tmgIwK

Quote from: shorena on February 05, 2016, 05:41:42 AM

Quote from: RealBitcoin on February 05, 2016, 05:03:11 AM

Quote from: notlist3d on February 01, 2016, 01:57:51 PM

The only problem is it has to be done right. Say you use a newer printer and it's compromised.... you could lose it through there. Rare yes but not impossible. The dumber the printer the better, also if you print a wallet might look into how to clear cache on your printer.

Power it off?

I dont know about you guys but I have a normal printer that prints only. Not with wireless crap and other stuff that has attack vector.

I just power off the printer, and the cache clears, because it doesnt have memory card and things like that.
-snip-

This is mainly for commercially used printers. In which case a power off would not help either, because they use a harddisk for long term storage. AFAIK this is not common on end user printers.

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.

shorena

copper member

Activity: 1498

Merit: 1528

No I dont escrow anymore.

Quote from: RealBitcoin on February 05, 2016, 05:03:11 AM

Quote from: notlist3d on February 01, 2016, 01:57:51 PM

The only problem is it has to be done right. Say you use a newer printer and it's compromised.... you could lose it through there. Rare yes but not impossible. The dumber the printer the better, also if you print a wallet might look into how to clear cache on your printer.

Power it off?

I dont know about you guys but I have a normal printer that prints only. Not with wireless crap and other stuff that has attack vector.

I just power off the printer, and the cache clears, because it doesnt have memory card and things like that.
-snip-

This is mainly for commercially used printers. In which case a power off would not help either, because they use a harddisk for long term storage. AFAIK this is not common on end user printers.

Nudies Fluffer

newbie

Activity: 40

Merit: 0

Any computer system online could potentially have exploitable weaknesses that could be used to gain access to one BTC and private keys.
Common sense and a decent understanding of how BTC works is a must when dealing with the storage of coins.

All sorts of ways a would be hacker could gain access to a persons Bitcoin, The trick to avoiding this is to be cautious of downloads and keep all private keys backed up in multiple places offline and have them secured by password.

Topic: Hacking - page 2. (Read 5258 times)