The recent surge in activity on Ethereum might be less a sign of euphoria and more a malicious background noise. A security researcher, Andrey Sergeenkov, believes that part of this increase resembles an "address poisoning" campaign, a variant of dusting that takes advantage of transaction fees that have been very low since December. "Activity retention" nearly doubled in a month, around 8 million addresses, while daily transactions reached a record close to 2.9 million.