if I disconnect my pc will my BTC be safe

BITCOINERSEJATI

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Quote from: BlackMachine on June 08, 2015, 04:43:12 AM

Quote from: Muhammed Zakir on June 07, 2015, 07:37:10 AM

Quote from: baristor on June 07, 2015, 07:12:51 AM

depends on where u are storing your btc, if its on a pc - wallet , it will be safe as long as u reconnect ur pc,

I think you meant "safe as long as u don't reconnect ur pc". It can be safe even if he connects internet as long as he knows how to secure his computer from malware.

Quote from: baristor on June 07, 2015, 07:12:51 AM

otherwise I Suggest u use an online wallet to store your cash and email encrypt it for extra protection! now days can even get mobile verification

Storing Bitcoins on an online wallet is worse than storing it in a local wallet.

it depends on whether the security of the site is secure enough and the procedures implemented so that they don't know your private key, either partially or fully. Example, greenaddress.it. They require at least 2 signatures and they cant steal it by using the only private key they have.

Quote from: BITCOINERSEJATI on June 08, 2015, 02:29:38 AM

Quote from: IamAGentleman on June 05, 2015, 07:09:41 AM

It's been connected to the internet, if I turn the internet off, is there a way my BTC can be stolen without physically taking my pc?

you must back up private key before you shutdown
you can back up on Hardisk external or Flashdisk
cause we not know after shutdown PC we can turn on it, or some one steal your PC

The backup part is kind of mandatory for everyone, regardless of the uptime. Stealing your PC is also easy if its turned on, main part is securing your private key. The only concern is that SSD have the potential to lose data if they are of the poor grade or stored at high temperature after a long time.

We can back up not in 1 place to safe it, iam using online cloud too like google cloud and i encrypt it before upload

hasmukhh

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according to me there are 2 ways a person can steal your bitcoins
1) having acces to your computer while you are connected to internet
2) physically accessing your computer to do a theft
a person can also steal your data if you have stored it in cloud service.

BlackMachine

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Quote from: Muhammed Zakir on June 07, 2015, 07:37:10 AM

Quote from: baristor on June 07, 2015, 07:12:51 AM

depends on where u are storing your btc, if its on a pc - wallet , it will be safe as long as u reconnect ur pc,

I think you meant "safe as long as u don't reconnect ur pc". It can be safe even if he connects internet as long as he knows how to secure his computer from malware.

Quote from: baristor on June 07, 2015, 07:12:51 AM

otherwise I Suggest u use an online wallet to store your cash and email encrypt it for extra protection! now days can even get mobile verification

Storing Bitcoins on an online wallet is worse than storing it in a local wallet.

it depends on whether the security of the site is secure enough and the procedures implemented so that they don't know your private key, either partially or fully. Example, greenaddress.it. They require at least 2 signatures and they cant steal it by using the only private key they have.

Quote from: BITCOINERSEJATI on June 08, 2015, 02:29:38 AM

Quote from: IamAGentleman on June 05, 2015, 07:09:41 AM

It's been connected to the internet, if I turn the internet off, is there a way my BTC can be stolen without physically taking my pc?

you must back up private key before you shutdown
you can back up on Hardisk external or Flashdisk
cause we not know after shutdown PC we can turn on it, or some one steal your PC

The backup part is kind of mandatory for everyone, regardless of the uptime. Stealing your PC is also easy if its turned on, main part is securing your private key. The only concern is that SSD have the potential to lose data if they are of the poor grade or stored at high temperature after a long time.

BITCOINERSEJATI

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Quote from: IamAGentleman on June 05, 2015, 07:09:41 AM

It's been connected to the internet, if I turn the internet off, is there a way my BTC can be stolen without physically taking my pc?

you must back up private key before you shutdown
you can back up on Hardisk external or Flashdisk
cause we not know after shutdown PC we can turn on it, or some one steal your PC

pooya87

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Quote from: Muhammed Zakir on June 07, 2015, 11:07:31 AM

Quote from: pooya87 on June 07, 2015, 09:04:00 AM

Quote from: Muhammed Zakir on June 07, 2015, 07:02:20 AM

Don't compare Blockchain.info. Bitcoins lost through Blockchain.info is very big and no, many of them were *not* due to users' faults.

if you are referring to the reusing of the "R values" by blockchain.info . i have to say, it could be easily avoided if the simple rule of "always use every address once" was followed, it could have been prevented.
-snip-

Reusing addresses are alright except it compromises privacy. Reused 'R values' were exposed due to Blockchain.info wallet's bug, not user's fault.

that is what i said, it was blockchain.info fault and it was unforgivable.
all i am saying is, everywhere you look it is recommend that you should use every address just once, and this simple act could have prevented their losses.

xarca

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I put my bitcoin on my mobile and I don't really connect on the internet much using my mobile. So I think it is secure. Plus, I don't let other people touch my mobile and I don't carry it much on the public. I only open it once I have an incoming payment just to check. This phone is an option phone. My wife and I share the same phone for contacts and she got this non-android mobile she uses as it lasts for a day or two.

randy8777

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Quote from: gloug333 on June 07, 2015, 02:11:56 PM

Quote from: BitcoinAddicts on June 05, 2015, 07:12:36 AM

I think no
but someone can physically take your bitcoins either taking you wallet.dat file, or exporting private keys or other way

or your bitcoin keys already being leaked from the last time you connected to the internet, it would be safer if the PC was never connected to the internet.

at some point you have to connect your pc to the internet, whether you want it or not. just make sure before you do anything, your pc is clean and safe. then you don't have to worry.

gloug333

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Quote from: BitcoinAddicts on June 05, 2015, 07:12:36 AM

I think no
but someone can physically take your bitcoins either taking you wallet.dat file, or exporting private keys or other way

or your bitcoin keys already being leaked from the last time you connected to the internet, it would be safer if the PC was never connected to the internet.

Muhammed Zakir

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I prefer Zakir over Muhammed when mentioning me!

Quote from: pooya87 on June 07, 2015, 09:04:00 AM

Quote from: Muhammed Zakir on June 07, 2015, 07:02:20 AM

Don't compare Blockchain.info. Bitcoins lost through Blockchain.info is very big and no, many of them were *not* due to users' faults.

if you are referring to the reusing of the "R values" by blockchain.info . i have to say, it could be easily avoided if the simple rule of "always use every address once" was followed, it could have been prevented.
-snip-

Reusing addresses are alright except it compromises privacy. Reused 'R values' were exposed due to Blockchain.info wallet's bug, not user's fault.

pooya87

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Quote from: Muhammed Zakir on June 07, 2015, 07:02:20 AM

Don't compare Blockchain.info. Bitcoins lost through Blockchain.info is very big and no, many of them were *not* due to users' faults.

if you are referring to the reusing of the "R values" by blockchain.info . i have to say, it could be easily avoided if the simple rule of "always use every address once" was followed, it could have been prevented.

Quote from: Amph on June 07, 2015, 08:21:16 AM

i'm talking about a direct attack to your desktop, like a ddos, but with also the possibility for him to take control of your machine, i think not, but maybe i'm wrong

i have experienced a "TCP SYN Flood attack" which is a kind of DDoS attack. the attacker needs your IP to do this kind of attack AFAIK. besides i wasn't doing anything out of the ordinary.

i must add that the attack was simply blocked by my dear AntiVirus (Eset Smart Security) and i blocked the attacker's IP afterwards, just to be safe.

Amph

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Quote from: Muhammed Zakir on June 07, 2015, 07:02:20 AM

Quote from: Amph on June 06, 2015, 04:00:55 PM

Quote from: BilalHIMITE on June 06, 2015, 09:22:40 AM

Quote from: Amph on June 05, 2015, 02:20:54 PM

my ip is dynamic, i'm not worried about that, being a target or not, they still need to find a way to infect me, which mean that they need that i download something or click on something, almost impossible
i think if you are really careful and know what your are doing, you are the best antivirus of your desktop, but i agree that such thing isn't advisable, average joe don't have the patience for something like this, they can not manage their own security

if you have 0.0001 btc of course your safe cause no one will work hard to stole your money.
but if it's 5 BTC even if your ip is dynamic or you have a cisco guard firewall. or DDos protection system or anything else.
the problem is your post, this post got 500 views maybe anyone will try to get your ip address.
if a hacker know that he will get 5 BTC (1100$). you know!!

those 5 btc are here since bitcoin was 1000(so there isn't even the excuse of "you are just not a good target", hacker has stole a much lower amount than that), and none has ever stole them, like i said they can't simply attack your desktop without your "permission"

It is not hard for a malware to get into your computer without your permission.

seeing how they are still here, i think it's easy to assume that it must be hard for them to violate my computer, simply visiting website is hardly any dangerous, unless you run some random script, and without downloading anything, i can't see how in the hell they could violate my machine

i'm actually interested about this, can a malicious user gain the control of your machine, without the need for him to send virus/trojan/malware/rat/rootkit/(website scrypt)ecc...and hoping that you click or install them or that you visit some obscure website?

i'm talking about a direct attack to your desktop, like a ddos, but with also the possibility for him to take control of your machine, i think not, but maybe i'm wrong

temroa

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i have seen a thing that is "NSA put virus to harddisks for reaching it from far away" its not about internetless pc but i just wanted to write

Muhammed Zakir

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I prefer Zakir over Muhammed when mentioning me!

Quote from: baristor on June 07, 2015, 07:12:51 AM

depends on where u are storing your btc, if its on a pc - wallet , it will be safe as long as u reconnect ur pc,

I think you meant "safe as long as u don't reconnect ur pc". It can be safe even if he connects internet as long as he knows how to secure his computer from malware.

Quote from: baristor on June 07, 2015, 07:12:51 AM

otherwise I Suggest u use an online wallet to store your cash and email encrypt it for extra protection! now days can even get mobile verification

Storing Bitcoins on an online wallet is worse than storing it in a local wallet.

baristor

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Activity: 637

Merit: 262

depends on where u are storing your btc, if its on a pc - wallet , it will be safe as long as u reconnect ur pc, otherwise I Suggest u use an online wallet to store your cash and email encrypt it for extra protection! now days can even get mobile verification

Muhammed Zakir

hero member

Activity: 560

Merit: 509

I prefer Zakir over Muhammed when mentioning me!

Quote from: Amph on June 06, 2015, 04:00:55 PM

Quote from: BilalHIMITE on June 06, 2015, 09:22:40 AM

Quote from: Amph on June 05, 2015, 02:20:54 PM

my ip is dynamic, i'm not worried about that, being a target or not, they still need to find a way to infect me, which mean that they need that i download something or click on something, almost impossible
i think if you are really careful and know what your are doing, you are the best antivirus of your desktop, but i agree that such thing isn't advisable, average joe don't have the patience for something like this, they can not manage their own security

if you have 0.0001 btc of course your safe cause no one will work hard to stole your money.
but if it's 5 BTC even if your ip is dynamic or you have a cisco guard firewall. or DDos protection system or anything else.
the problem is your post, this post got 500 views maybe anyone will try to get your ip address.
if a hacker know that he will get 5 BTC (1100$). you know!!

those 5 btc are here since bitcoin was 1000(so there isn't even the excuse of "you are just not a good target", hacker has stole a much lower amount than that), and none has ever stole them, like i said they can't simply attack your desktop without your "permission"

It is not hard for a malware to get into your computer without your permission.

Quote from: pooya87 on June 07, 2015, 04:15:02 AM

i agree. of all the "my bitcoin was stolen" stories that i have heard so far, almost all of them was the person's fault. like clicking on a phishing email, opening a suspicious link like fake blockchain.info address, having keylogger, using Tor,...
all of these can be prevented by taking necessary precautions. like having a good and up to date antivirus or using offline wallets,...

Don't compare Blockchain.info. Bitcoins lost through Blockchain.info is very big and no, many of them were *not* due to users' faults.

pooya87

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Quote from: Amph on June 06, 2015, 04:00:55 PM

Quote from: BilalHIMITE on June 06, 2015, 09:22:40 AM

Quote from: Amph on June 05, 2015, 02:20:54 PM

my ip is dynamic, i'm not worried about that, being a target or not, they still need to find a way to infect me, which mean that they need that i download something or click on something, almost impossible
i think if you are really careful and know what your are doing, you are the best antivirus of your desktop, but i agree that such thing isn't advisable, average joe don't have the patience for something like this, they can not manage their own security

if you have 0.0001 btc of course your safe cause no one will work hard to stole your money.
but if it's 5 BTC even if your ip is dynamic or you have a cisco guard firewall. or DDos protection system or anything else.
the problem is your post, this post got 500 views maybe anyone will try to get your ip address.
if a hacker know that he will get 5 BTC (1100$). you know!!

those 5 btc are here since bitcoin was 1000(so there isn't even the excuse of "you are just not a good target", hacker has stole a much lower amount than that), and none has ever stole them, like i said they can't simply attack your desktop without your "permission"

i agree. of all the "my bitcoin was stolen" stories that i have heard so far, almost all of them was the person's fault. like clicking on a phishing email, opening a suspicious link like fake blockchain.info address, having keylogger, using Tor,...
all of these can be prevented by taking necessary precautions. like having a good and up to date antivirus or using offline wallets,...

Amph

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Quote from: BilalHIMITE on June 06, 2015, 09:22:40 AM

Quote from: Amph on June 05, 2015, 02:20:54 PM

my ip is dynamic, i'm not worried about that, being a target or not, they still need to find a way to infect me, which mean that they need that i download something or click on something, almost impossible
i think if you are really careful and know what your are doing, you are the best antivirus of your desktop, but i agree that such thing isn't advisable, average joe don't have the patience for something like this, they can not manage their own security

if you have 0.0001 btc of course your safe cause no one will work hard to stole your money.
but if it's 5 BTC even if your ip is dynamic or you have a cisco guard firewall. or DDos protection system or anything else.
the problem is your post, this post got 500 views maybe anyone will try to get your ip address.
if a hacker know that he will get 5 BTC (1100$). you know!!

those 5 btc are here since bitcoin was 1000(so there isn't even the excuse of "you are just not a good target", hacker has stole a much lower amount than that), and none has ever stole them, like i said they can't simply attack your desktop without your "permission"

BilalHIMITE

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Quote from: Amph on June 05, 2015, 02:20:54 PM

my ip is dynamic, i'm not worried about that, being a target or not, they still need to find a way to infect me, which mean that they need that i download something or click on something, almost impossible
i think if you are really careful and know what your are doing, you are the best antivirus of your desktop, but i agree that such thing isn't advisable, average joe don't have the patience for something like this, they can not manage their own security

if you have 0.0001 btc of course your safe cause no one will work hard to stole your money.
but if it's 5 BTC even if your ip is dynamic or you have a cisco guard firewall. or DDos protection system or anything else.
the problem is your post, this post got 500 views maybe anyone will try to get your ip address.
if a hacker know that he will get 5 BTC (1100$). you know!!

Lauda

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Terminated.

Quote from: Amph on June 06, 2015, 03:08:08 AM

yeah i know, but i'm very careful everytime i open one, usually you need to download something there, also

That's good for you. Keep at it.

Quote from: Amph on June 06, 2015, 03:08:08 AM

it's funny how you always want to contradict me Cheesy

, but you are wrong on malwarebyte, it can be used without any problem, along with others antivirus

No. You're the one trying to be right all the time with false assumption, understanding and posting without backing up your words with facts/evidence.
How about actually reading my post before replying to me (hence the thread in meta)?

Quote from: Lauda on June 06, 2015, 02:50:05 AM

No. Having multiple antivirus software is a bad idea because they will counteract each other. They will start fighting over viruses, they will try to kill each other and sap your power. However, it is okay to have an AV and Malwarebytes.
-snip-

Quote from: Herbert2020 on June 06, 2015, 08:28:47 AM

it is better to sweep all your addresses into a new address that you create with your new wallet.
every wallet has this option to sweep addresses when you import, which means you send your coins to the new wallet instead of risking contaminating the new wallet.

You should take this advice. Every time I've tried to move to a new wallet, I actually transfer everything to a single address (newly generated).

Another good option if you're willing to spend some money:

Quote from: LiteCoinGuy on June 06, 2015, 03:14:19 AM

to be even more safe you can buy a hardware-wallet:

https://bitcointalksearch.org/topic/overview-bitcoin-hardware-wallets-secure-your-coins-899253

Herbert2020

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Quote from: syuhide on June 06, 2015, 03:30:34 AM

Quote from: (Lithium) on June 06, 2015, 03:26:18 AM

or you can write your private keys in some place that no one would expect to find them, so they would not be subject to hardware failures

yes transferring your private keys to another place will be the best idea..or you can store all your coins to deep freezer...

it is better to sweep all your addresses into a new address that you create with your new wallet.
every wallet has this option to sweep addresses when you import, which means you send your coins to the new wallet instead of risking contaminating the new wallet.

Topic: if I disconnect my pc will my BTC be safe (Read 2577 times)