AI Daily Brief — 26 May 2025

US Memorial Day with no fresh frontier-lab releases. Europol announced a major coordinated malware infrastructure takedown. Trump tariff overhang kept reshaping the AI-hardware narrative. The Builder.ai collapse from the prior week kept rippling through AI-business discourse. DeepSeek-R1-0528 was still two days out.

Top stories

• Operation ENDGAME 2.0 — international takedown of initial-access malware ecosystem. Europol/Eurojust-led action dismantled over 300 servers and 650 domains tied to malware distribution and ransomware. 20 international arrest warrants and €3.5M cryptocurrency seized. Strains neutralized: Bumblebee, Lactrodectus, Qakbot, Hijackloader, DanaBot, Trickbot, Warmcookie. Participating: Canada, Denmark, France, Germany, Netherlands, UK, US. via Europol
• Trump 50% EU tariff threat delayed to July 9. Tariff overhang plus a separate 25% iPhone tariff threat continue to weigh on tech-policy discussion, with potential pass-through to AI-data-center hardware imports.
• Builder.ai insolvency aftermath dominates AI-business news. Microsoft-backed startup (peak $1.5B valuation, $450M+ raised) collapsed after Viola Credit seized $37M of its $42M cash on May 20. Allegations that the ‘AI’ platform was largely powered by 700 Indian engineers turned the collapse into May’s marquee cautionary tale for AI hype.

Quiet corners

No frontier-lab product news from OpenAI, Anthropic, Google, Meta or xAI on the holiday. Claude Opus 4 + Sonnet 4 launched Thursday; DeepSeek-R1-0528 would not drop until Wednesday May 28; Mistral Agents API was scheduled for May 27.

By the numbers

• 300+ servers / 650+ domains / 20 arrests / €3.5M crypto — Operation ENDGAME 2.0 scale
• July 9 — delayed effective date for Trump’s 50% EU tariff threat
• $1.5B / $450M+ / $37M / 700 — Builder.ai peak valuation / cumulative raise / seized cash / India-based engineers
• Most-mentioned entity: Europol

Compiled by AI Feed’s editor from verified web sources for 26 May 2025.