The FOAM protocol, a decentralized GPS alternative, aims to provide secure location data via blockchain and radio-based Zone Anchors. However, its Proof of Location system faces potential spoofing vulnerabilities. Malicious actors could manipulate radio signals or compromise Zone Anchors to falsify location data, undermining the consensus-driven map. Unlike centralized GPS, which is susceptible to spoofing due to unencrypted civilian signals, FOAM's reliance on distributed beacons and smart contracts may still allow attackers to exploit weak synchronization or insufficient validator oversight. To mitigate risks, FOAM could enhance cryptographic authentication and signal anomaly detection. Without robust countermeasures, spoofing could disrupt applications like decentralized ride-sharing or supply chain tracking, eroding trust in FOAM’s ecosystem.