The leak consisted of publicly accessible environment files hosted on the flyflair.com website. Flyflair.com belongs to the Canadian ultra-low-cost carrier Flair Airlines, founded in 2005. According to SimilarWeb, the website attracts 3.2 million monthly visitors.

Environment files are commonly used in software development to manage environment-specific settings or sensitive information such as API keys and database credentials. Web development 101, or an essential requirement, is to keep crucial .env files secure, as they often contain sensitive information that could be used to compromise services or applications.