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Platform security

The software supply chain starts with the developer. To make sure that GitHub, the home of open source, can help defend the entire ecosystem against supply chain attacks, we bring our engineering and security teams together as we build. Here’s how.

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Finding leaked passwords with AI: How we built Copilot secret scanning

Passwords are notoriously difficult to detect with conventional programming approaches. AI can help us find passwords better because it understands context. This blog post will explore the technical challenges we faced with building the feature and the novel and creative ways we solved them.

Fixing security vulnerabilities with AI

A peek under the hood of GitHub Advanced Security code scanning autofix.

Security in the Enterprise

How we use Dependabot to secure GitHub

A two-part story about how GitHub’s Product Security Engineering team rolled out Dependabot internally to track vulnerable dependencies, and how GitHub tracks and prioritizes technical debt.

Behind GitHub’s new authentication token formats

We’re excited to share a deep dive into how our new authentication token formats are built and how these improvements are keeping your tokens more secure. As we continue to…

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Latest

Security keys are now supported for SSH Git operations

GitHub has been at the forefront of security key adoption for many years. We were an early adopter of Universal 2nd Factor (“U2F”) and were also one of the first…

How we threat model

At GitHub, we spend a lot of time thinking about and building secure products—and one key facet of that is threat modeling. This practice involves bringing security and engineering teams…

CERT partners with GitHub Security Lab for automated remediation

Learn more about how we found ways to scale our vulnerability hunting efforts and empower others to do the same. In this post, we’ll take a deep-dive in the remediation of a security vulnerability with CERT.

Behind the scenes: GitHub security alerts

Learn more about what’s behind the scenes with GitHub vulnerability alerts.

GitHub Token Scanning—one billion tokens identified and five new partners

Token scanning has reached a new milestone: one billion tokens identified. We’ve also added five new partners—Atlassian, Dropbox, Discord, Proctorio, and Pulumi.

Commit signing support for bots and other GitHub Apps

Commit signing is now enabled for all bots by default.

SSH certificate authentication for GitHub Enterprise Cloud

Enterprise and organization admins can now register their SSH certificate authorities with GitHub, helping their team access repositories over Git using SSH certificates.

Five years of the GitHub Bug Bounty program

Read about some big changes for the coming year: full legal protection for researchers, more GitHub properties eligible for rewards, and increased reward amounts.

Behind the scenes of GitHub Token Scanning

We’ve extended GitHub Token Scanning to include tokens from cloud service providers and additional credentials.

Applying machine intelligence to GitHub security alerts

Learn how we use machine learning to power and build on security alerts and make GitHub more secure.

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Soft U2F

In an effort to increase the adoption of FIDO U2F second factor authentication, we’re releasing Soft U2F: a software-based U2F authenticator for macOS. We’ve long been interested in promoting better…

Discontinue support for weak cryptographic standards

Cryptographic standards are ever evolving. It is the canonical game of security cat and mouse, with attacks rendering older standards ill-suited, and driving the community to develop newer and stronger…

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A glimpse into GitHub’s Bug Bounty workflow

Last month, we announced the third anniversary of our Bug Bounty Program. While there’s still time to disclose your findings through the program, we wanted to pull back the curtain…

GitHub’s post-CSP journey

Last year we shared some details on GitHub’s CSP journey. A journey was a good way to describe it, as our usage of Content Security Policy (CSP) significantly changed from…

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SYN Flood Mitigation with synsanity

GitHub hosts a wide range of user content, and like all large websites this often causes us to become a target of denial of service attacks. Around a year ago,…

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