With this topic, I want to address the growing trend of Open Banking, where banks are opening up their APIs to third parties to foster innovation and provide better customer services. I will be highlighting some hidden risks and vulnerabilities that come with this trend. I will touch on touches on: 1) Data security and privacy in an open ecosystem 2) The regulatory landscape like PSD2 3) Cybersecurity challenges specific to financial APIs 4) Trust and security measures between financial institutions and third parties