Skip to content

An Information Security Glossary of Terms

infosec glossary miessler 2020

I’ve been writing about Information Security for around 20 years now, and I’ve written a lot about the definitions of various terms. A number of people have asked me to assemble those definitions into a single location, and that’s what we’ve done below.

These terms are active works in progress, so if you can improve them please let me know.

Each term has a link to more discussion around each definition.