Binance CEO CZ has issued a warning regarding the security of API keys, emphasizing the need for immediate checks and replacements if such keys are embedded in code, even within private repositories. This advisory comes in the wake of GitHub's announcement of an investigation into unauthorized access to its internal codebase. GitHub has assured users that there is no current evidence of customer data being compromised, but it remains vigilant in monitoring its systems for any unusual activity. Should any impact on user data or services be confirmed, GitHub plans to notify affected customers through established communication channels.