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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.
GitHub has announced the general availability of a new security feature called push protection, which aims to prevent developers from inadvertently leaking keys and other secrets in their code
Security researchers have shared a new Python-based ransomware recovery tool named 'White Phoenix' on GitHub, which lets victims of ransomware strains that use intermittent encryption recover their files for free. [...]
"White Phoenix" automated tool for recovering data on partially encrypted files hit with ransomware is available on GitHub.
GitHub is now automatically blocking the leak of sensitive information like API keys and access tokens for all public code repositories. [...]