Ledger signing SDK metadata after signing, per Greg Markou

In this clip from Unchained, Greg Markou, co-founder and CEO of Sprinter and a former Ethereum core dev, says Ledger's signing SDK sends metadata to its servers after a user signs. He calls that step completely unnecessary. Markou says more device memory could have avoided the offloading. He also calls third-party calls around a transaction super sketchy. Austin Griffith, co-host and builder enablement at Ethereum Foundation, discusses proxies, registries and why clear signing is hard to get right. Markou says hardware wallets are not meant for end users. The clip comes from a longer conversation that also covers Vitalik moving on from ultrasound money, Ledger's telemetry and AI inference markets. Hosts are Kain Warwick and Austin Griffith.