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How to Store Secure Encrypted Data in Rails without using Gems

Storing sensitive data in plaintext can seriously harm your internet business if an attacker gets hold of the database. Encrypting data is also a GDPR friendly best practice. In this tutorial I will describe a simple way to securely encrypt, store, and decrypt data using built in Ruby on Rails helpers instead of external dependencies.

https://pawelurbanek.com/rails-secure-encrypt-decrypt

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