Wireless networks, a ubiquitous and often overlooked element of Web3 projects, pose a significant operational security (OPSEC) risk due to a phenomenon called "beaconing." As mobile devices move, they publicly disseminate personally identifiable information (PII) that malicious actors can combine with open-source intelligence (OSINT) to infer a user's travel plans, physical addresses, past conference attendance, associated crypto projects, and even the location of hardware wallets. This vulnerability contributes to the increasing threat of physical attacks (such as kidnapping and ransom, or "wrench attacks") and social engineering, as well as the risk of disclosing material nonpublic information.

This workshop will walk attendees through using readily available tools to collect and analyze everyday wireless signals. Hardware crypto wallets will be made available for analysis. Other secure tooling will be observed. Will there be enough information in the room to identify devices, individuals, crypto wealth? We will see.