Bitcoin Forum

The hacker stole my bitcoin two day ago,a small amount ， less than 0.2BTC, I want to know how can I protect my  coins,if a large number of bitcoins  I know I use offline wallet, but a small amount of Bitcoins,I only set the password, but it seems not enough.

We need more information, like where were your bitcoins kept?  Did you share a password anywhere else?

I was also a recent victim of a bitcoin hack to the tune of 2 bitcoins.  I know how it feels.   :-\

The hacker?

Search cold storage on here for many ways to store a lot of coins.

If you had your bitcoins on your computer using a bitcoin client with an encrypted (password protected) wallet then the main way to get that is a key logger. There's not much you can do if your computer is that infested.

Look at your startup folder and the registry.
Scan with a Linux Boot CD fot example with Kaspersky!

Do you want a fairly safe hot wallet? Is that what you are talking about? Use the search function or google it, it's been documented a thousand times.

What hacker?

THE hacker.  :-)


Kidding aside, what OS were you using?  Was it online?  What wallet software?

As was stated above, look up cold storage, that is what you want.

im thinking
10% chance it was a true hacker
30% chance it was done by a script kiddie using a keyboard logging trojan that the victim naively downloaded
30% chance it was a 'btc generator' scam hiding a keyboard logging trojan that the victim naively downloaded
30% chance he put funds into an online service which has a less than ideal reputation

Don't forget the blockchain clones that come up day after day asking for your private key.

there are quite a lot HACKERS these days  :o

Since you haven't specified the wallet you used and how you lost your bitcoin, I can only give you some general suggestions.

Scan your computer for malware now.
Don't download or run suspicious program.
Don't click links in emails.
Enable 2FA if you are using a web wallet.
 

A) Put them on your phone for daily use.

B) Get another harddrive you only use for bitcoin, NO PORN, ZERO!! STOP GOOGLING TITS.

they are very very huge virtual wallets

sad but true, good comment  ;)

no porn? are you kidding me?  internet would be useless :D

Whoa whoa whoa whoa whoa now.. That is what your main harddrive is for.  Your secondary harddrive shouldn't even be googling anything.

Harddrives dont google, humand google.

I think a paper wallet is the best option.

Stop using Windows &  start using Linux ;D Or .. you can use Hardware wallet

Near zero info from op, useless thread.....

Agreed.  This was a real time waster.

You really should have a separate computer that you use to keep your bitcoin (private keys) on then your "main" computer that you use for porn (and email, traditional banking, social media, surfing the internet, ect) even if the bitcoin (private keys) is intended to be your "hot wallet"

I wouldn't say there are lots of hackers,
Rather careless people.

Currency of the future!

/tip $.001

Seems like it was made for the post count.

If he really needs help: Use 2FA, always, everywhere and you will be safe as long as your phone is!

2FA will only help you if you are entrusting your bitcoin with a third party as there is no encryption protocol that will protect you using 2FA

I guess the only way to keep coins safe is using a Boot CD/DVD, on a machine that has no other permanent storage, and then keep the password protected hot wallet on a USB stick or other removeable media.

Then only use that machine for crypto currency transactions but NOTHING ELSE. This will almost guarantee a virus free machine. Even better would be air gap techniques but I suppose that means more effort.

Any machine with access to the web, and permanent storage, is almost guaranteed to catch malware sooner or later.

online exchange is not safe, i wonder which platform do u use?

We need more info to help you was it web wallet, exchange?

An antivirus would help most.

Apparently not

https://bitcointalk.org/index.php?topic=850128.0

Which online wallet do you use? How do you know it is stolen by hackers rather than others?

I just know if the keyboard logging trojan can make losing BTC in offline wallet. however, this time I just use an online wallet, call it blockhain. and always safe for me. perhaps they were stolen just unlucky

I bet you're using Windows which is pure shit compared to Linux.

i kept it on my computer, the password was knew noly myself. yes , fell sad for the lost Although the number is not much.

i know that i should search cold storage to store a lot of coin. but for the small amount of coins, Before, I think no one will take care of it,But now it seems I was wrong.

And again barely any info.....

In this case your computer is compromised. Consider your email and any private documents on your computer as public domain. Format your PC and change all your passwords to all websites.

I still think OP made this post to boost his post count.... Still rather useless thread.

the wallet: i download it from the   forum, Bitcoin Core version 0.9.3  ,my computer system: WINDOW 7

when it was updating the new block date i left,when i came back,it completed the updated,the same time ,the coins was transfered.

In this case your computer is compromised. Consider your email and any private documents on your computer as public domain. Format your PC and change all your passwords to all websites.

Also think about what you downloaded or ran on your computer that could've contained viruses or Trojans.

thank you ,i now Storage all my coins  on the exchange,like:OKCOIN.

i don't want to update the large number of blocks  data.

Don't store your coins on an exchange, if that exchange pulls a MtGox, you're screwed.