Yes, Samsung phones have built-in security measures to protect the device and the user's data. Samsung provides a range of security features such as Knox, which secures the device's hardware and software components, and offers secure boot, runtime protection, and data encryption. Samsung phones also have biometric authentication options such as fingerprint, face, and iris recognition, which add an extra layer of security to the device. Additionally, Samsung regularly releases security updates and patches to protect against any new security vulnerabilities. Overall, Samsung phones have strong built-in security features to keep the device and user's data safe.