[MUSIC] Hello everyone, many of us use social
media web applications such as Twitter, Facebook, and Instagram. We also use banking web applications
on a regular basis to check our bank information like credit cards,
account status and mortgage information. We risk our personal data every day
by using these web applications. And so, software security has become
a very critical part of our lives. Also, a software developer who
has a fundamental understanding of software security can have
an advantage in the workplace. When we study software security, we want
to keep in mind the fundamental ideas of confidentiality, integrity,
and availability. We also want to be aware of the idea that
individual software security concepts can be thought of as conceptual
building blocks for understanding other aspects
of software development. In this module, you will gain exposure
to the ideas of threat modeling and applied cryptography. By the end of the module, you will be able
to start to create threat models, and think critically about the threat
models created by other people. You will be able to apply
the STRIDE Method to your threat model and distinguish the trust
boundaries in a given system. You will also gain a basic understanding
of applied cryptography such as encryption and secure hashing. We have a lot to cover,
so let's get started.