GitHub Bans Iran-Based Users

US-based code repository GitHub has curbed access for users from Iran citing US sanctions against the country.
Over the past 24 hours, Iran-based users of GitHub have been receiving emails from the American tech firm that their access to the code repository is being curbed.
The emails reviewed by the Financial Tribune reads as follows, “Due to US trade controls law restrictions, your GitHub account has been restricted. For individual accounts, you may have limited access to free GitHub public repository services for personal communications only.”
The move has been widely criticized by programmers on Twitter, calling it an outright discrimination against Iranians. 
GitHub is where programmers store code for collaborative projects, both open source and private. They can track changes, post bugs, ask questions, etc.