Analysts at the Binance bitcoin exchange recorded a large-scale “dust attack” on the Litecoin cryptocurrency network, the purpose of which, most likely, is to compromise user privacy.
So, the attackers sent tiny amounts of LTC to various wallets in order to track the further movement of these funds and establish the company / identity behind the addresses.
According to Binance, in theory this can allow hackers to carry out targeted phishing attacks or blackmail. A similar attack against Bitcoin users was recorded in October 2018 by the developers of the privacy-oriented wallet Samourai Wallet.
The wallet almost immediately introduced the Do Not Spend feature, which allowed users not to mix the inputs of the dust transaction with their other transfers, which reduced the attack efficiency to zero.