Redditor Claims to Lose $83,000 in Monero Due to Ledger Wallet Bug
An alleged Nano Wallet bug involving ‘change’ transactions is resulting in lost cryptocurrency. | Source: Shutterstock
The bug appears to incorrectly process change transactions. One user appears to claim they’ve lost 1600 Monero, worth nearly $83,000 at press time.
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No proof of this claim was offered, but the user says:
I didn’t get it back. I restored my seed on another Ledger and the balance was still 0.
A user flaired as a “ledger crypto developer” warned users:
Do not use Ledger Nano S with client 0.14 until more information is provided.
Understanding Crypto Change
There are a few primary transaction models in cryptocurrency. Ethereum and others use the “account” model, where a single address simply deducts and credits other addresses. Bitcoin, Monero, and many others use “unspent transaction outputs” (UTXO), which credit new transactions.
Say you’ve received 2 deposits of 1 BTC each, and you want to send 1.25 BTC to an exchange. Bitcoin will deduct one whole UTXO and .25 from the other. The remainder moves to a “change” address within the same transaction.
Unless otherwise specified, the change address will be generated based on the private keys of your wallet.