Container Security
In-depth guides and analysis on container security from the Safeguard engineering team.
284 articles
A Practical Kubernetes Operator Security Checklist
Kubernetes operators run with broad cluster access. This checklist covers the controls that matter most in 2025, from RBAC scoping to image provenance.
The 2019 Docker Hub Database Breach Exposing User Credent...
In April 2019, Docker Hub exposed 190,000 accounts' credentials and GitHub/Bitbucket tokens. Here's what happened, what leaked, and why it still matters for supply chain security.
Docker Hub malicious image report
Researchers estimate roughly 3% of public Docker Hub images carry malicious payloads. Here's what's inside them, how they spread, and how to defend your pipeline.
Top vulnerable base images on Docker Hub
A look at why Docker Hub's most-pulled base images still ship hundreds of known CVEs, and how reachability analysis cuts the noise down to what's actually exploitable.
Cryptomining malware hidden in public Docker images
Cryptomining malware keeps resurfacing in public Docker images. Here's how attackers hide miners in plain sight — and how to catch them before they run.
Docker Hub typosquatting of official images
Attackers are cloning popular Docker Official Images under lookalike names, tricking `docker pull` into fetching malware instead of trusted base images.
Container image supply chain attack trends
Container images have become the software supply chain's most contested attack surface. A look at the xz-utils backdoor, registry-borne malware campaigns, and the detection gaps behind them.
Alpine vs Debian base image vulnerability comparison
A 2026 look at Alpine vs. Debian base image CVEs shows raw vulnerability counts mislead — patch cadence and reachability matter more than distro choice.
Outdated container images still running in production
New industry data shows most production containers still run on stale, vulnerable base images months after fixes ship -- here's why, and how to close the gap.
Container registry credential leak trends
2026 data shows container registry credential leaks accelerating as CI pipelines speed up — and why layer-aware scanning, not just final-image checks, is now essential.
Distroless image security trend report
Distroless adoption is up nearly 3x since 2024, but Safeguard's 2026 scan data shows SBOM gaps, missed dependencies, and inflated CVE lists still undermine the hardening it promises.
Kubernetes Helm chart vulnerability trends
New Safeguard research finds most public Helm charts ship risky defaults and stale image pins—here's what the data shows and how to fix it.
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