Explore the limitations of SMS-based authentication and discover more secure alternatives in this AppSecUSA 2016 conference talk. Delve into the risks associated with using SMS for two-factor authentication, including recent security issues with major tech companies. Learn why push notifications offer a superior solution, providing both enhanced security and improved user experience. Examine how secure apps and mobile notification networks can create a more robust authentication channel. Gain insights into implementing these advanced methods to validate user identity and secure in-application transactions. Benefit from the speaker's extensive experience in security and identity management as he shares valuable knowledge on evolving authentication practices.