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An Information Security Glossary of Terms
![infosec glossary miessler 2020](https://media.beehiiv.com/cdn-cgi/image/fit=scale-down,format=auto,onerror=redirect,quality=80/uploads/asset/file/e101c4a1-9b62-4761-9903-5c34c0591e98/infosec-glossary-miessler-2020-1.png)
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.