8:30 12 chapters
Daily Digest - June 21, 2026
John Jumper jumps to Anthropic, AutoJack hijacks AI agents, North Korea poisons the Mastra packages, and Secure Boot's clock runs out - your June 21 rundown.
Chapters
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Intro
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Nobel laureate John Jumper leaves DeepMind for Anthropic
https://techcrunch.com/2026/06/20/nobel-laureate-john-jumper-is-leaving-deepmind-for-rival-anthropic/ -
The Atlantic maps the music used to train AI
https://www.theverge.com/ai-artificial-intelligence/953183/the-atlantic-searchable-database-music-ai-training-data -
Signal's Meredith Whittaker: AI chatbots are not your friends
https://techcrunch.com/2026/06/20/signals-meredith-whittaker-wants-you-to-remember-that-ai-chatbots-are-not-your-friends/ -
A field guide to building reliable agentic AI
https://martinfowler.com/articles/reliable-llm-bayer.html -
AutoJack: a web page that can hijack an AI agent
https://thehackernews.com/2026/06/autojack-attack-lets-one-web-page.html -
Microsoft ties Mastra AI package attack to North Korea
https://www.bleepingcomputer.com/news/security/microsoft-links-mastra-ai-supply-chain-attack-to-north-korean-hackers/ -
Klue OAuth breach feeds Salesforce data theft
https://www.bleepingcomputer.com/news/security/klue-oauth-breach-linked-to-icarus-salesforce-data-theft-attacks/ -
Security week: FortiBleed leak and Splunk under attack
https://www.helpnetsecurity.com/2026/06/21/week-in-review-74k-fortinet-firewall-credentials-stolen-splunk-enterprise-rce-under-active-attack/ -
ShinyHunters leak exposes Madison Square Garden data
https://www.wired.com/story/security-news-this-week-hackers-claim-to-leak-stolen-madison-square-garden-data/ -
Secure Boot certificates start expiring June 24
https://www.wired.com/story/a-critical-deadline-is-approaching-for-windows-and-linux-security/ -
Sign-off
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