WorkThe story, in brief
'Like handing out the blueprint to a bank vault': Why AI led one company to abandon open source
One of the most vocal open-source advocates just abandoned the model entirely. Here's why AI security just broke open source.
The KeyNews take
Why it matters
A major company's shift from open to proprietary signals a fundamental tension in AI development: transparency vs. security. As AI systems become more sophisticated, open-source codebases are becoming attack vectors—forcing leaders to choose between community contribution and vulnerability management.
The key facts
5 to knowCal migrating flagship open-source program to proprietary model
AI-driven code vulnerability/hacking cited as primary driver
Open-source security risk framed as 'blueprint to a bank vault'
Signals broader policy/governance shift in AI development community
Published April 2026 — recent market signal
Go to the source
ZDNet AIzdnet.com
Publisher excerpt: Cal is moving its flagship open-source program to a proprietary model because it can't cope with the dangers of AI hacking its open code.