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Background for this topic.
GitHub is a hosted software-development platform built around Git repositories. It supports public and private source-code hosting, change review through pull requests, issue tracking, automated workflows, and package distribution. Its repositories and automation are important security assets because they can contain proprietary code, deployment instructions, credentials, and the components used to build released software.
Material risks include accidentally committing secrets, exposing private repositories through misconfigured permissions, and allowing compromised dependencies or workflow actions to run in trusted build environments. Pull requests from untrusted contributors can also become an execution path when workflows handle them unsafely. Security practice includes least-privilege access, strong authentication, protected branches and required reviews, secret scanning and rapid credential revocation, and auditing workflow permissions. Repository history, dependency metadata, and commit provenance can support vulnerability management and incident investigation, but deleting a leaked secret from the latest file does not remove it from historical commits or existing clones.
Microsoft has taken down an undisclosed number of GitHub repositories used in a massive malvertising campaign that impacted almost one million devices worldwide. [...]
Cybersecurity researchers are alerting of an ongoing malicious campaign targeting the Go ecosystem with typosquatted modules that are designed to deploy loader malware on Linux and Apple macOS systems
Nisos has found six personas leveraging new and existing GitHub accounts to get developer jobs in Japan and the US