Hacking - page 4. | Bitcointalksearch.org

Snorek

legendary

Activity: 1400

Merit: 1001

Quote from: relq on January 06, 2016, 04:51:46 AM

Quote from: Jet Cash on January 06, 2016, 12:16:48 AM

Quote from: FruitsBasket on January 03, 2016, 03:16:48 PM

The most used way by hackers is that they install a keylogger on your computer through software that you have downloaded somewhere. If you login to your wallet, all the keys u clicked will be sent to them, also your password and wallet information. So they login and steal your coins, as easy as that.
Another way would be brute force, to prevent this from happening, you need a strong password with much charachters and special numbers/symbols and uppercase and lowercase. To prevent keylogging, do not download anything fishy or from a non reliable source!

Don't forget that Microsoft has installed a keylogger in Windows 10.

Wow i don't know that microsoft has installed keylogger in windows 10. Actually it's easy to prevent hacker, don't download something that suspicious and download anti malware and spyware.

Yes, that is true. Microsoft is gathering telemetry data and know everything you do on your Windows 10. Win 10 has keylogger build in by default, you can however try to disable it by using various 'no spy addons'.
But if you own bitcoin I would not be worried about Microsoft, they won't steal your bitcoins, they just like to spy on you.

Kyrish

newbie

Activity: 16

Merit: 0

Hello, xmax! There are really some ways of hacking into your wallet... One of the most widely spread methods is using some keylogger software. There are several free tools available now like the one from Spyrix. You should be aware of such things because they log all the keystrokes and passwords when installed. I've used some keyloggers for monitoring purposes, so I know how they work

Just be sure that there is no any suspicious software on your PC and install a good anti-virus

RealBitcoin

hero member

Activity: 854

Merit: 1009

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

Quote from: qWark on January 07, 2016, 08:15:36 AM

It could be brute forced, but the amount of time it would take to crack it would be ridicules.

I doubt anyone would try unless it was for thousands of bitcoins.

Yes, and the probability that you find it before that is also slim.

Because probably the private key will be in the latter half of the number range, because nobody will put a small number for it like 92532

qWark

full member

Activity: 196

Merit: 100

It could be brute forced, but the amount of time it would take to crack it would be ridicules.

I doubt anyone would try unless it was for thousands of bitcoins.

shorena

copper member

Activity: 1498

Merit: 1528

No I dont escrow anymore.

Quote from: knightkon on January 06, 2016, 08:38:57 PM

Quote from: shorena on January 03, 2016, 04:00:41 AM

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?

It is possible that someone can just guess or brute force your private key. The chance however is so small you might as well call it impossible. Its as likely as someone winning the lottery several times in a row and will for all we know never happen as long as the sun is still burning.

Other than that it mostly depends on the way you use your machine. As AllInCrypto said if the machine that you use to control your wallet is infected by malware, its easy for the attacker to spend your coins. Its however not "easy" to infect a modern, well updated system, unless you do something to help the malware. Commonly bitcoin related malware will require you to execute it yourself, so be careful what you download and use.

Just reading through and have to question how someone could brute force your private key? I of coarse do not understand what the private key is nor do I understand what brute force means, but the thread interested me.

A private key is just a number. So lets assume the possible numbers for a private key are between 1 and 4. I dont know your private key, but I just test all 4. Thats a brute force attack. I just try all possible combinations and see if I hit the jackpot. Of course with bitcoin the number is significantly bigger. There are 2²⁵⁶ = 115792089237316195423570985008687907853269984665640564039457584007913129639936 possible private keys. Roughly one for every 1000 atoms in the known universe[1]. This makes guessing your private key possible with infinite time and resources. We dont have infinite time and resources though, so we can consider it impossible.

[1] http://www.wolframalpha.com/input/?i=2%5E256

Amph

legendary

Activity: 3248

Merit: 1070

Quote from: PartsSlinger on January 06, 2016, 10:52:10 AM

Quote from: Amph on January 06, 2016, 10:46:34 AM

Quote from: PartsSlinger on January 06, 2016, 09:20:37 AM

Quote from: Amph on January 06, 2016, 03:11:36 AM

Quote from: PartsSlinger on January 06, 2016, 12:31:52 AM

Quote from: Jet Cash on January 06, 2016, 12:16:48 AM

Quote from: FruitsBasket on January 03, 2016, 03:16:48 PM

The most used way by hackers is that they install a keylogger on your computer through software that you have downloaded somewhere. If you login to your wallet, all the keys u clicked will be sent to them, also your password and wallet information. So they login and steal your coins, as easy as that.
Another way would be brute force, to prevent this from happening, you need a strong password with much charachters and special numbers/symbols and uppercase and lowercase. To prevent keylogging, do not download anything fishy or from a non reliable source!

Don't forget that Microsoft has installed a keylogger in Windows 10.

Wow I'm glad I didn't install 10. Is there at least an option to turn it off?

yes there are soem guide, on how to turn off cortina and everything in the privacy windows

but i doubt win 10 will ever steal your private key, it's as good as the best fud out there about the value of bitcoin...

I don't think win 10 would try and steal my keys, but at the same time if you have a factory installed keylogger wouldn't that make it easier for a potential hacker to find your information once he is inside your system?

you mena someone malicious from microsoft employees? because another hacker if he install his keylogger it certainly won't benefit to much by the fact that windows 10 has already one...

Fair point, but even in your scenario it still doesn't make me want to have a factory installed keylogger. I can promise you not everyone at microsoft is a saint and people get ripped off all the time by malicious employees.

yeah that's true, i would only store a small amount on windows 10 as it is right now, until they can sort this mess at 100%

better to avoid it and use linux/win 7 for the time being

knightkon

hero member

Activity: 588

Merit: 500

Quote from: shorena on January 03, 2016, 04:00:41 AM

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?

It is possible that someone can just guess or brute force your private key. The chance however is so small you might as well call it impossible. Its as likely as someone winning the lottery several times in a row and will for all we know never happen as long as the sun is still burning.

Other than that it mostly depends on the way you use your machine. As AllInCrypto said if the machine that you use to control your wallet is infected by malware, its easy for the attacker to spend your coins. Its however not "easy" to infect a modern, well updated system, unless you do something to help the malware. Commonly bitcoin related malware will require you to execute it yourself, so be careful what you download and use.

Just reading through and have to question how someone could brute force your private key? I of coarse do not understand what the private key is nor do I understand what brute force means, but the thread interested me.

RealBitcoin

hero member

Activity: 854

Merit: 1009

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

Quote from: PartsSlinger on January 06, 2016, 10:52:10 AM

Quote from: Amph on January 06, 2016, 10:46:34 AM

Quote from: PartsSlinger on January 06, 2016, 09:20:37 AM

Quote from: Amph on January 06, 2016, 03:11:36 AM

Quote from: PartsSlinger on January 06, 2016, 12:31:52 AM

Quote from: Jet Cash on January 06, 2016, 12:16:48 AM

Quote from: FruitsBasket on January 03, 2016, 03:16:48 PM

The most used way by hackers is that they install a keylogger on your computer through software that you have downloaded somewhere. If you login to your wallet, all the keys u clicked will be sent to them, also your password and wallet information. So they login and steal your coins, as easy as that.
Another way would be brute force, to prevent this from happening, you need a strong password with much charachters and special numbers/symbols and uppercase and lowercase. To prevent keylogging, do not download anything fishy or from a non reliable source!

Don't forget that Microsoft has installed a keylogger in Windows 10.

Wow I'm glad I didn't install 10. Is there at least an option to turn it off?

yes there are soem guide, on how to turn off cortina and everything in the privacy windows

but i doubt win 10 will ever steal your private key, it's as good as the best fud out there about the value of bitcoin...

I don't think win 10 would try and steal my keys, but at the same time if you have a factory installed keylogger wouldn't that make it easier for a potential hacker to find your information once he is inside your system?

you mena someone malicious from microsoft employees? because another hacker if he install his keylogger it certainly won't benefit to much by the fact that windows 10 has already one...

Fair point, but even in your scenario it still doesn't make me want to have a factory installed keylogger. I can promise you not everyone at microsoft is a saint and people get ripped off all the time by malicious employees.

Haha you mean those microsoft call center scams from India.

Haha those guys might be real microsoft employees, but they are just part-time scammers trying to earn an extra buck Cheesy

PartsSlinger

newbie

Activity: 42

Merit: 0

Quote from: Amph on January 06, 2016, 10:46:34 AM

Quote from: PartsSlinger on January 06, 2016, 09:20:37 AM

Quote from: Amph on January 06, 2016, 03:11:36 AM

Quote from: PartsSlinger on January 06, 2016, 12:31:52 AM

Quote from: Jet Cash on January 06, 2016, 12:16:48 AM

Quote from: FruitsBasket on January 03, 2016, 03:16:48 PM

The most used way by hackers is that they install a keylogger on your computer through software that you have downloaded somewhere. If you login to your wallet, all the keys u clicked will be sent to them, also your password and wallet information. So they login and steal your coins, as easy as that.
Another way would be brute force, to prevent this from happening, you need a strong password with much charachters and special numbers/symbols and uppercase and lowercase. To prevent keylogging, do not download anything fishy or from a non reliable source!

Don't forget that Microsoft has installed a keylogger in Windows 10.

Wow I'm glad I didn't install 10. Is there at least an option to turn it off?

yes there are soem guide, on how to turn off cortina and everything in the privacy windows

but i doubt win 10 will ever steal your private key, it's as good as the best fud out there about the value of bitcoin...

I don't think win 10 would try and steal my keys, but at the same time if you have a factory installed keylogger wouldn't that make it easier for a potential hacker to find your information once he is inside your system?

you mena someone malicious from microsoft employees? because another hacker if he install his keylogger it certainly won't benefit to much by the fact that windows 10 has already one...

Fair point, but even in your scenario it still doesn't make me want to have a factory installed keylogger. I can promise you not everyone at microsoft is a saint and people get ripped off all the time by malicious employees.

Amph

legendary

Activity: 3248

Merit: 1070

Quote from: PartsSlinger on January 06, 2016, 09:20:37 AM

Quote from: Amph on January 06, 2016, 03:11:36 AM

Quote from: PartsSlinger on January 06, 2016, 12:31:52 AM

Quote from: Jet Cash on January 06, 2016, 12:16:48 AM

Quote from: FruitsBasket on January 03, 2016, 03:16:48 PM

The most used way by hackers is that they install a keylogger on your computer through software that you have downloaded somewhere. If you login to your wallet, all the keys u clicked will be sent to them, also your password and wallet information. So they login and steal your coins, as easy as that.
Another way would be brute force, to prevent this from happening, you need a strong password with much charachters and special numbers/symbols and uppercase and lowercase. To prevent keylogging, do not download anything fishy or from a non reliable source!

Don't forget that Microsoft has installed a keylogger in Windows 10.

Wow I'm glad I didn't install 10. Is there at least an option to turn it off?

yes there are soem guide, on how to turn off cortina and everything in the privacy windows

but i doubt win 10 will ever steal your private key, it's as good as the best fud out there about the value of bitcoin...

I don't think win 10 would try and steal my keys, but at the same time if you have a factory installed keylogger wouldn't that make it easier for a potential hacker to find your information once he is inside your system?

you mean someone malicious from microsoft employees? because another hacker if he install his keylogger it certainly won't benefit too much by the fact that windows 10 has already one...

PartsSlinger

newbie

Activity: 42

Merit: 0

Quote from: Amph on January 06, 2016, 03:11:36 AM

Quote from: PartsSlinger on January 06, 2016, 12:31:52 AM

Quote from: Jet Cash on January 06, 2016, 12:16:48 AM

Quote from: FruitsBasket on January 03, 2016, 03:16:48 PM

The most used way by hackers is that they install a keylogger on your computer through software that you have downloaded somewhere. If you login to your wallet, all the keys u clicked will be sent to them, also your password and wallet information. So they login and steal your coins, as easy as that.
Another way would be brute force, to prevent this from happening, you need a strong password with much charachters and special numbers/symbols and uppercase and lowercase. To prevent keylogging, do not download anything fishy or from a non reliable source!

Don't forget that Microsoft has installed a keylogger in Windows 10.

Wow I'm glad I didn't install 10. Is there at least an option to turn it off?

yes there are soem guide, on how to turn off cortina and everything in the privacy windows

but i doubt win 10 will ever steal your private key, it's as good as the best fud out there about the value of bitcoin...

I don't think win 10 would try and steal my keys, but at the same time if you have a factory installed keylogger wouldn't that make it easier for a potential hacker to find your information once he is inside your system?

relq

sr. member

Activity: 420

Merit: 250

Quote from: Jet Cash on January 06, 2016, 12:16:48 AM

Quote from: FruitsBasket on January 03, 2016, 03:16:48 PM

The most used way by hackers is that they install a keylogger on your computer through software that you have downloaded somewhere. If you login to your wallet, all the keys u clicked will be sent to them, also your password and wallet information. So they login and steal your coins, as easy as that.
Another way would be brute force, to prevent this from happening, you need a strong password with much charachters and special numbers/symbols and uppercase and lowercase. To prevent keylogging, do not download anything fishy or from a non reliable source!

Don't forget that Microsoft has installed a keylogger in Windows 10.

Wow i don't know that microsoft has installed keylogger in windows 10. Actually it's easy to prevent hacker, don't download something that suspicious and download anti malware and spyware.

adibe

sr. member

Activity: 406

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?

I think it's not about hack, but it must be their relative that hack his/her wallet. i think it's hard to hack someone wallet on online wallet. for prevent this maybe you should make your password hard and only you that know your password.

Amph

legendary

Activity: 3248

Merit: 1070

Quote from: PartsSlinger on January 06, 2016, 12:31:52 AM

Quote from: Jet Cash on January 06, 2016, 12:16:48 AM

Quote from: FruitsBasket on January 03, 2016, 03:16:48 PM

The most used way by hackers is that they install a keylogger on your computer through software that you have downloaded somewhere. If you login to your wallet, all the keys u clicked will be sent to them, also your password and wallet information. So they login and steal your coins, as easy as that.
Another way would be brute force, to prevent this from happening, you need a strong password with much charachters and special numbers/symbols and uppercase and lowercase. To prevent keylogging, do not download anything fishy or from a non reliable source!

Don't forget that Microsoft has installed a keylogger in Windows 10.

Wow I'm glad I didn't install 10. Is there at least an option to turn it off?

yes there are some guide, on how to turn off cortina and everything in the privacy windows

but i doubt win 10 will ever steal your private key, it's as good as the best fud out there about the value of bitcoin...

PartsSlinger

newbie

Activity: 42

Merit: 0

Quote from: Jet Cash on January 06, 2016, 12:16:48 AM

Quote from: FruitsBasket on January 03, 2016, 03:16:48 PM

The most used way by hackers is that they install a keylogger on your computer through software that you have downloaded somewhere. If you login to your wallet, all the keys u clicked will be sent to them, also your password and wallet information. So they login and steal your coins, as easy as that.
Another way would be brute force, to prevent this from happening, you need a strong password with much charachters and special numbers/symbols and uppercase and lowercase. To prevent keylogging, do not download anything fishy or from a non reliable source!

Don't forget that Microsoft has installed a keylogger in Windows 10.

Wow I'm glad I didn't install 10. Is there at least an option to turn it off?

Jet Cash

legendary

Activity: 2814

Merit: 2472

https://JetCash.com

Quote from: FruitsBasket on January 03, 2016, 03:16:48 PM

The most used way by hackers is that they install a keylogger on your computer through software that you have downloaded somewhere. If you login to your wallet, all the keys u clicked will be sent to them, also your password and wallet information. So they login and steal your coins, as easy as that.
Another way would be brute force, to prevent this from happening, you need a strong password with much charachters and special numbers/symbols and uppercase and lowercase. To prevent keylogging, do not download anything fishy or from a non reliable source!

Don't forget that Microsoft has installed a keylogger in Windows 10.

BTCBinary

hero member

Activity: 504

Merit: 500

Yes your wallet can and will be hacked if you do not take the needed measures. If you are using a web wallet be sure to activate you 2FA security option and always be sure to have a very very strong password for your accounts. if you have a Desktop wallet be careful, don't hold many bitcoin in there.

As for a paper wallet if you follow all the right procedure it is nearly impossible to hack

Blawpaw

legendary

Activity: 1596

Merit: 1027

Always Remember, as long as you have 2FA enabled there will be few little chances of your account being hacked.

RealBitcoin

hero member

Activity: 854

Merit: 1009

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

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?

If you have an easy to guess private key, then anybody can hack it from anywhere.

If you have a virused online PC where you keep your wallet, or you have an online web wallet then its also vulnerable.

FruitsBasket

legendary

Activity: 1232

Merit: 1017

The most used way by hackers is that they install a keylogger on your computer through software that you have downloaded somewhere. If you login to your wallet, all the keys u clicked will be sent to them, also your password and wallet information. So they login and steal your coins, as easy as that.
Another way would be brute force, to prevent this from happening, you need a strong password with much charachters and special numbers/symbols and uppercase and lowercase. To prevent keylogging, do not download anything fishy or from a non reliable source!

Topic: Hacking - page 4. (Read 5258 times)