Here's a neutral and interesting summary of the text in one paragraph: Symmetric and asymmetric encryption are two common methods used to protect sensitive data with cryptography. Symmetric encryption uses a single key for both encryption and decryption, making it faster and more efficient than asymmetric encryption. Asymmetric encryption, on the other hand, uses a pair of keys - a public and private key - to encrypt and decrypt sensitive data. Both methods have their strengths and weaknesses, and are suited for different use cases. Symmetric encryption is often used for bulk data encryption at rest, while asymmetric encryption is suitable for small-scale data transmission such as TLS/SSL and digital certificates. The text also explores the implementation of symmetric and asymmetric encryption in Python using various libraries and tools, including the AWS Encryption SDK and Snyk, which can be used to scan for vulnerabilities in applications.