Crypto trader Frogman linked his monitoring to a broader campaign aimed at TOKEN2049 attendees in Singapore, after reporting that attackers took more than $4 million from two wallets.
Frogman said attackers took nine types of tokens from his two main wallets.
He described imitation wireless networks at hotels, airports and the conference venue. Frogman also cited interception, phishing sites and harmful app updates, saying the tactics might expose device details or help attackers access funds in hot wallets.
