Trezor T - 'Unknown transactions' vs 'Unauthorised transactions'

Hi there.

I am hoping someone can help me understand a few Trezor issues. I have a Trezor T which I did a swap from SOL to USDT on the device going through Changelly.

On the ‘Overview’ section of the device I saw a transaction that has “Unknown transaction” with a link to solscan which I assume is the blockchain explorer for SOL. I didn’t quite understand what was it was saying so I was a little more than worried at the time.

I contacted Trezor and the support person said I needed to move my funds immediately and that ‘Unauthorised transactions’ are malicious.

I had a new Trezor Safe 5 that I planned to transfer to anyway and proceeded to follow these instructions. All good - the Trezor T funds where moved safely.

Now I am trying to understand what the difference between ‘Unknown transaction’ and ‘Unauthorised transaction’. I think the support person put me wrong.

After receiving those instructions I never heard back from ‘Brian’ from Trezor and he just left me hanging. I have replied to the support ticket a number of times - nothing.

Would love to hear thoughts and perhaps an official Trezor person might be of assistance. Its a little disappointing to be honest. If I am being unreasonable feel free to call me out. Looking forward to the communities thoughts on this.

@forgi Do you have any thoughts on this please?

Hi, unknown transactions on SOL are not unauthorized, these are spam transactions.

Unauthorized means outgoing transactions from your account with loss of funds.

Can you please share a ticket number?

Ticket ID: 40298

To be fair I may have said it was an ‘Unknown transaction’ and it took $400 dollars. I was mistaken and believe no funds have been removed after further checking.

But I did follow his instructions and moved to my new Trezor which I was going to do anyway.

I would like to understand more about these spam transactions please. I also have lots of SOL transactions with

Received SOL
0.000000006
0.000000008
0.000000006

Not sure if that is related. Thank you for your help!! Much appreciated :slight_smile:

The unknown transactions you see are most likely scam “tokens,” scam NFTs, or other unrelated transactions sent to your address. These transactions are broadcast across the Solana blockchain by various parties for analytical purposes, which can cause them to be marked as unknown. All of these transactions appear because they include your Solana address, but please rest assured that they pose no risk to the security of your funds.

In the transaction ID you sent in the ticket I do not see any 400 USD value that you said was transferred out of the wallet.

Please, send your SOL address to the ticket so we can review further.

Thank you. This makes sense. It was definitely a ‘Unknown transaction’ and ‘I thought’ that I was missing 400 dollars but that is not the case.

Okay thanks for the information on the spam transactions. This is helpful. I will send the wallet address tomorrow as may wallet is packed away in a safe at the moment.

Thanks for your time. I will email that SOL wallet address tomorrow.

I have replied to the support ticket Peter with the SOL address as requested.

Is there anything I can do to not get these spam related transactions. Would generating a new SOL address help and is this possible?

Any other thoughts, I am really wanting to be responsible here and be safe and at the moment I feel nervous about possible breaches using Trezor wallet.

Thanks for your time!

I sent the SOL address as requested by you and then support came back and tried to close the ticket on me??

Sorry, but this is concerning that I have been having so much trouble getting answers and then the ticket gets closed on me.

Thank you got excellent assistance from Lucien!