Security & Privacy Articles

This post explains the cryptographic infrastructure behind Advanced Browsing Protection (ABP) in Messenger, which detects malicious links without exposing user query data to the server.

Security & Privacy

Meta

11 min read

Security•2026-02-04

No Display? No Problem: Cross-Device Passkey Authentication for XR Devices

Meta Engineering presents a novel approach to enable cross-device passkey authentication for XR devices and other screenless hardware without requiring QR codes.

Rust at Scale: An Added Layer of Security for WhatsApp

WhatsApp rolled out a Rust-based media validation library to billions of devices as a defense-in-depth security layer against malicious files.

Security & Privacy