ByteBrief
We're a portrait publication through and through. Turn your phone back and your briefing picks up right where you left it.
(We tried widescreen once. It wasn't us.)

Gray Swan, an AI security startup, relaunches its Arena platform on Tuesday as Arena 2.0 to test AI agents. The company runs a new Indirect Prompt Injection Black challenge with $300,000 in prizes sponsored by Anthropic, Meta, Google DeepMind, and Reflection AI. New attack scenarios release weekly through Nov. 2, requiring participants to drive AI agents safely within sandbox environments.
Tap to vote and see what everyone thinks.
Summary by ByteBrief