John Slack
John Slack is a Senior Product Manager with 10+ years of experience working on hyperscale cloud infrastructure and enterprise workloads. Prior to Chainguard, he worked at Google, where he focused on making Google Compute Engine the best platform for Windows Server and SQL Server. Before that, he worked at Microsoft on the core virtualization team (Hyper-V), where he focused on core Azure computing infrastructure, and the PowerShell team, where he was the initial PM on the PowerShell Gallery.
Written by John Slack

Introducing Chainguard OS Packages: Secure ingredients for custom container builds
product
Chainguard FIPS enters 2026 with OpenSSL 3.1.2 and better CMVP visibility
security
This Shit is Hard: Keeping Chainguard OS lean, current, and secure — the power of garbage collection
engineering
Announcing Kernel-Independent FIPS for Java
engineering
Forging Ahead in Federal Compliance: Chainguard’s FIPS 140-3 and 186-5 Milestones
engineering
Chainguard Containers Enabled with PQC Support
engineering