We updated our RSA SSH host key
At approximately 05:00 UTC on March 24, out of an abundance of caution, we replaced our RSA SSH host key used to secure Git operations for GitHub.com.
Posts by
Mike Hanley
Mike Hanley is the Chief Security Officer and SVP of Engineering at GitHub. Prior to GitHub, Mike was the Vice President of Security at Duo Security, where he built and led the security research, development, and operations functions. After Duo’s acquisition by Cisco for $2.35 billion in 2018, Mike led the transformation of Cisco’s cloud security framework and later served as CISO for the company. Mike also spent several years at CERT/CC as a Senior Member of the Technical Staff and security researcher focused on applied R&D programs for the US Department of Defense and the Intelligence Community. When he’s not talking about security at GitHub, Mike can be found enjoying Ann Arbor, MI with his wife and eight kids.
How we use GitHub to be more productive, collaborative, and secure
Our engineering and security teams do some incredible work. Let’s take a look at how we use GitHub to be more productive, build collaboratively, and shift security left.
Software security starts with the developer: Securing developer accounts with 2FA
GitHub will require all users who contribute code on GitHub.com to enable one or more forms of two-factor authentication (2FA) by the end of 2023.
Security alert: Attack campaign involving stolen OAuth user tokens issued to two third-party integrators
On April 12, GitHub Security began an investigation that uncovered evidence that an attacker abused stolen OAuth user tokens issued to two third-party OAuth integrators, Heroku and Travis-CI, to download data from dozens of organizations, including npm. Read on to learn more about the impact to GitHub, npm, and our users.
The Open Source Software Security Summit: securing the world’s code together
My colleague Stormy Peters and I are proud to represent GitHub at the White House’s Open Source Software Security Summit.
GitHub’s commitment to npm ecosystem security
We're sharing details of recent incidents on the npm registry, our investigations, and how we’re continuing to invest in the security of npm.
GitHub security update: revoking weakly-generated SSH keys
On September 28, 2021, we received notice from the developer Axosoft regarding a vulnerability in a dependency of their popular git GUI client - GitKraken. An underlying issue with a dependency, called `keypair`, resulted in the GitKraken client generating weak SSH keys.
GitHub security update: Vulnerabilities in tar and @npmcli/arborist
Between July 21, 2021 and August 13, 2021 we received reports through one of our private security bug bounty programs from researchers regarding vulnerabilities in tar and @npmcli/arborist.
Securing your GitHub account with two-factor authentication
The benefits of multifactor authentication are widely documented, and there are a number of options for using 2FA on GitHub.
Updates to our policies regarding exploits, malware, and vulnerability research
One month ago, we started a discussion with the community about proposed revisions to clarify GitHub’s policies on security research, malware, and exploits with the goal to enable, welcome, and…
A call for feedback on our policies around exploits and malware
April 30, 2021 update: Thank you to everyone who's weighed in on the discussion so far. I've commented in the pull request to clarify a few points based on initial…
GitHub security update: A bug related to handling of authenticated sessions
Why did I get logged out of GitHub.com? On the evening of March 8, we invalidated all authenticated sessions on GitHub.com created prior to 12:03 UTC on March 8 out…
Hello from GitHub’s new Chief Security Officer
The world runs on software, and a large portion of it, especially the open source software that’s part of everything we experience, is built by millions of developers on GitHub…