Dusting is when a small amount of crypto is sent to a large number of wallet addresses–maybe thousands and more. These accounts are then being monitored using blockchain explorers. Analyzing these transactions may lead to identifying the person behind the wallet, a network of transactions, and so on.
Dusting is also called dusting attacks since it acts against the will of the account holders. Anyone on the internet can analyze these attacks using the tools and a public block explorer— meaning the “attacker” need not be the one doing the dusting.
Dusting attacks are not always done by hackers or robbers. Sometimes, dusting is used to identify the person or the network of transactions involved in criminal activities. On-chain analysis or blockchain analysis firms use dusting for academic purposes or even as a stress test for the network. Dusting is also used to advertise to a large number of users. Scammers also try dusting to get the personal information of the wallet addresses to send phishing emails or cyber extortion.
There have been dusting attacks in the past targeting certain networks. These are not a threat to the functioning of a blockchain or affect the wallet which gets dusted. In fact, post such dusting attacks, many exchanges now offer to club your crypto dust into one single cryptocurrency—mostly to their own native coin. Wallet providers have also come up with solutions for dusting by tracing the dusty crypto and marking it as “do not spend”. Therefore, dusting attacks are not much harmful unless you highly value your privacy.
Should you be worried about the crypto dust in your wallet? Not really. It is very normal to have these dust amounts in your wallet. You just need to be careful if you are getting any unexpected crypto from unexpected sources in your wallet. With crypto dust, you can always add more crypto and transfer the dust amount or just let it stay in your wallet