how to fully secure web/mobile/desktop application connected the same backend server [closed]

I have a React/Express application, I want to fully secure it. I’m looking for best practices for these features:

data encryption/decryption
end-to-end communication
access control
role management
authentication
threat detection
file prot… Continue reading how to fully secure web/mobile/desktop application connected the same backend server [closed]

Security Practices for a React App – Node.js – Notion REST API Pipeline

I’ve been thinking about security practices for a personal project where I would create content on a Notion account and have a Node.js middleware server that’ll act as a REST API that allows anybody to access that Notion content while prot… Continue reading Security Practices for a React App – Node.js – Notion REST API Pipeline

Can an attacker mess with a website that doesn’t use a back-end server? (and how I can prevent that)

I’m developing a React web app where the user can input a .csv of their transaction data, and the app will output useful analysis that will inform their future purchase decisions.
I’m planning to use an input component for the user to inpu… Continue reading Can an attacker mess with a website that doesn’t use a back-end server? (and how I can prevent that)

How do I properly secure my login using bcrypt in react and a python-flask backend?

I want to store the passwords of accounts hashed into a database that can be accessed through a python-flask application. When you would login, this python application is supposed to provide you with a token that will be saved in the front… Continue reading How do I properly secure my login using bcrypt in react and a python-flask backend?

How to (login) with an email address and display the username on the user profile, in ReactJs and Nodejs

Well, I asked this question on StackOverflow, but got no answer.
i am going to ask this here.
I have a login system with nodejs and reactjs, mysql.
so I can log in with both an email address and username.
but with username, I am able to sh… Continue reading How to (login) with an email address and display the username on the user profile, in ReactJs and Nodejs

react.js security from a novice – front-end development security

I am developing a dApp for my dissertation at University.
As I do not come from a computer science background, I am unsure of security risks, specifically related to the javascript front-end of my dApp. I know about decentralisation and se… Continue reading react.js security from a novice – front-end development security