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Lobsters

Why 0xCAFEBABE?

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  1. webaudio fingerprinting on alibaba

    Firefox made WebAudio output deterministic in v118, collapsing most variance to three CPU‑dependent buckets (x86 without FMA, x86/x64 with FMA, ARM NEON). Telemetry shows 99.24% of users fall into these buckets; a long tail of 23 distinct values affects <0.1% of users. Ongoing bugs aim to merge the remaining buckets. Alibaba’s fingerprint script was extracted (two SHA‑256 hashes) and shown to be…

    Mozilla Automation Teamritter.vg3 min
  2. ZuckOff Know when a camera is in the room

    ZuckOff is a mobile app that passively scans for Bluetooth advertisements from camera‑glasses (Ray‑Ban Meta, Oakley Meta, Snap Spectacles, etc.) and notifies the user when such devices are nearby. It logs all BLE devices, lets users whitelist known glasses, offers iOS widgets and Live Activity alerts, and can export logs as CSV. The app is free, has no account, and is marketed alongside merch.

    Hacker News front pagezuckoff.app2 minreleaseHN59099