In this Hasty Treat, Scott and Wes talk about front end security and what to do in order to avoid hacking.

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Show Notes

2:53 - SSL

Encrypted transfer of information
Digitally binds a cryptographic key to an organization’s details
Web-cam, geolocation, etc.

6:15 - innerHTML

React’s dangerouslySetInnerHTML
- Name intentionally chosen to be frightening
- Allows you to write HTML to the DOM
- Data should be sanitized before used in prop
  - Removes unexpected data from string
  - Used to prevent cross site scripting attacks

10:25 - Don’t trust the client

The client can be manipulated to send any info to your server
E-commerce example — don’t take the price total from the front end to make the charge, DB call and calculate on the server
Validate form inputs via HTML 5 field validation/check data types on the server
- Don’t allow your users to send an object when it should just be a string
- Get this for free with GraphQL via types

13:41 - PCI Compliance

Protect card holder data
- SSL or Secure iFrame
Encrypt transmission of card data
Restrict access to card holder data
Restrict physical access
- Front of front-end

16:44 - Tips

Don’t put a name on sensitive fields if you are using JS
HTTP only cookies
Local Storage tokens
XSS

Links

React
GraphQL
Express

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Hasty Treat - Front End Security

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