Ruby security playbook targets the 30% of malicious gems bypassing registry filters

Tactic · Dev.to · stat: 30%

Gaberial Sofie details a Ruby supply chain security playbook after a teammate nearly merged a typosquatted gem. While RubyGems.org automated tooling catches 70% to 80% of malicious packages, Sofie warns developers must secure their own builds. The playbook recommends pinning versions, enforcing commit SHAs for git dependencies, and committing a verified Gemfile.lock.

Registry security is a sieve; local build verification is mandatory. Teams must implement local dependency verification rather than trusting upstream package registries to catch malicious typosquatting attempts.

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