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# The Signal: AI Agents, Bitcoin Retreats, and a $175M Bridge Exploit
- URL: https://wire.fourthweb.ai/the-signal-ai-agents-bitcoin-retreats-and-a-175m-bridge-exploit/
- Published: 2026-04-23T16:01:01.000Z
- Updated: 2026-04-24T01:01:18.000Z
- Description: Bitcoin's treasury strategy crumbles as shareholders revolt while a hacker drains $175M from Kelp through a permission-free bridge. Meanwhile Visa's CMO says marketers need to start selling to AI agents instead of humans as autonomous systems reshape commerce.
- Author: Travis Wright
- Tags: daily-signal

Bitcoin's treasury strategy crumbles as shareholders revolt while a hacker drains $175M from Kelp through a permission-free bridge. Meanwhile Visa's CMO says marketers need to start selling to AI agents instead of humans as autonomous systems reshape commerce.

*April 23, 2026 — 287 words / \~1.9 min*

### Stories covered:

1. [Visa CMO to Marketers: Stop Selling to Humans, Sell to AI Agents](https://wire.fourthweb.ai/visa-cmo-to-marketers-stop-selling-to-humans-sell-to-ai-agents/)
2. [Shareholders Vote to Kill Their Own Bitcoin Hoard as Strategy Implodes](https://wire.fourthweb.ai/shareholders-vote-to-kill-their-own-bitcoin-hoard-as-strategy-implodes/)
3. [$175M Kelp Hacker Bypasses Every Security Layer Using Permission-Free Bridge](https://wire.fourthweb.ai/175m-kelp-hacker-bypasses-every-security-layer-using-permission-free-bridge/)