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The internet is an open, public system with a lot of data flowing through it. Even though we all send and store information online, there's some information that we choose to keep private. In security, this type of data is known as personally identif...

Computers use a lot of encryption algorithms to send and store information online. They're all helpful when it comes to hiding private information, but only as long as their keys are protected. Can you imagine having to keep track of the encryption k...

Previously, you learned these terms:  Encryption: the process of converting data from a readable format to an encoded format Public key infrastructure (PKI):  an encryption framework that secures the exchange of online information Cipher: an alg...

Previously, you learned these terms:  Encryption: the process of converting data from a readable format to an encoded format Public key infrastructure (PKI):  an encryption framework that secures the exchange of online information Ciph...

We've spent some time together exploring a couple forms of encryption. The two types we've discussed produce keys that are shared when communicating information. Encryption keys are vulnerable to being lost or stolen, which can lead to sensitive info...

Hash functions are important controls that are part of every company's security strategy. Hashing is widely used for authentication and non-repudiation, the concept that the authenticity of information can’t be denied. Previously, you learned that hash functi...

Protecting data is a fundamental feature of security controls. When it comes to keeping information safe and secure, hashing and encryption are powerful, yet limited tools. Managing who or what has access to information is also key to safeguarding in...

Most companies help keep their data safely locked up behind authentication systems. Usernames and passwords are the keys that unlock information for most organizations. But are those credentials enough? Information security often focuses on managing a user's a...

Access is as much about authorization as it is about authentication. One of the most important functions of access controls is how they assign responsibility for certain systems and processes. Next up in our exploration of access control systems are ...

Have you ever wondered if your employer is keeping a record of when you log into company systems? Well, they are, if they're implementing the third and final function of the authentication, authorization, and accounting framework. A...

My name is Tim and I work on the Detection and Response team at Google. You can think of us as the smoke detectors and the fire departments at Google. So what our job is, is to detect harmful activity that may affect Google and its users. The stakes here...

Security is more than simply combining processes and technologies to protect assets. Instead, security is about ensuring that these processes and technologies are creating a secure environment that supports a defense strategy. A key to doing this is implementi...

Wow! We've covered a lot together! It's hard to believe we've reached the midpoint of this course. I hope you're getting a clearer picture of this exciting field and all the opportunities it has to offer. And most importantly, I hope you're having ...

Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each input would have exactly one solution, and you may not use the same element twice. You can return the answer in...

using System; using System.Collections.Generic; using System.Linq; using Unity.Collections; using Unity.Mathematics; using UnityEngine; using UnityEngine.Serialization; using UnityEngine.Splines; using Random = UnityEngine.Random; #if UNITY_EDITOR ...

Our focus in this section was on a major theme of security: protecting assets. A large part of this relates to privacy. We should all enjoy the right to decide who can access our information. As we learned, there are several controls in place that ...

For every asset that needs protecting, there are dozens of vulnerabilities.  Finding those vulnerabilities and fixing them before they become a problem is the key to keep an asset safe. We've already covered what a vulnerability is...