5 Software Supply Chain Security Best Practices for Development Teams

Sonatype reports 99% of open source malware in 2025 appeared on npm. A self-replicating npm worm spread across developer environments within days. Verizon finds third-party breach involvement doubled to 30% year-over-year. Teams building container workloads must verify base images with SBOMs, SLSA Build Level 3 attestations, and cryptographic signatures. Continuous monitoring and pre-deployment checks are critical for supply chain defense.