Bitcoin transaction has gone to a random address

[norbig]

Hello there, Please excuse my severe lack of knowledge but I thought I'd post on here to see if anyone can help me.  I tried to send some bitcoin from coinbase to my gatehub bitcoin wallet.  To track it I went on Blockcypher.  I can see on there the bitcoin was sent to my wallet address (my address being the output created).  However after that I see that my address along with other addresses then became the input with a single address as the output.  My wallet says received x amount of bitcoin but also sent x amount (same value) with a balance of 0 bitcoin.  Has my bitcoin been sent somewhere else?

Again, sorry if this is daft question.  Complete novice. 


Any help would be appreciated.

[LoyceV]

My wallet says received x amount of bitcoin but also sent x amount (same value) with a balance of 0 bitcoin.  Has my bitcoin been sent somewhere else?

It sounds like your wallet has been compromised.
I have no experience with Gatehub, but the general advice is to consider your computer compromised too. Don't use that wallet again, clean your computer, and start over.

[SopaXT]

It may be a change address.
Do you still have your balance on the wallet you sent from (wallet, not an address)?

[bob123]

Yes, your bitcoins got moved out of your address. If they got moved out of your address without you doing any transaction then your pc is probably compromised.
In this case i would recommend not just to clean your pc with an AV, but completely set up a new environment / reinstall the OS.
Quite a few people seem to have problem with gatehub according to [https://www.cryptocompare.com/wallets/gatehub/].
Seems quite buggy and additionally your private keys are stored on their server (encrypted with your private key), which should always be avoided.
If you are going to store BTC's again on your pc then make sure to keep everything up to date (people always neglect updates).
And for higher amounts which you can't afford to lose you may chose a hardware or paper wallet to store them safely.