You can now use the REST API to create a temporary private fork within a draft security advisory or private vulnerability report.
Learn more about the repository security advisories REST API
We’ve released the following improvements to your homepage feed.
2. You will now see cards for when someone has forked one of your repositories. 
We're committed to continually improving your experience with GitHub Support, and part of that commitment involves enhancing the personalization of our services.
Starting December 8, you will need to be signed-in to your GitHub account to access our Support portal. This change will be rolled out gradually to ensure a smooth transition for all our customers. If you already have a GitHub account, please sign in as usual when accessing the Support Portal. If you don't have an account or are unable to sign in, we'll guide you through a simple email verification process.
We're excited about this change and confident that it will make your experience with GitHub Support more secure and personalized.