diff --git a/defenses.tex b/defenses.tex
index 0d42d00..9cf110f 100644
--- a/defenses.tex
+++ b/defenses.tex
@@ -281,7 +281,7 @@ protection.
 \subsection{Tor}
 \label{subsec:tor}
 
-Tor is an open source project aimed at providing secure, anonymous
+Tor \cite{TorProject} is an open source project aimed at providing secure, anonymous
 communication. Its main component is a network of community-hosted relays that
 route traffic through several nodes to the destination. The second component is
 the \emph{Tor Browser}, which is a modified version of the Firefox browser and
diff --git a/references.bib b/references.bib
index b0f212a..50dc2e6 100644
--- a/references.bib
+++ b/references.bib
@@ -1438,6 +1438,14 @@ Impact of CSS-based history detection},
   note = {Accessed 2020-07-10}
 }
 
+@misc{TorProject,
+  title = {The {{Tor Project}}},
+  url = {https://torproject.org},
+  urldate = {2020-08-25},
+  abstract = {Defend yourself against tracking and surveillance. Circumvent censorship.},
+  note = {Accessed 2020-08-25}
+}
+
 @article{trevisanYearsEUCookie2019,
   title = {4 {{Years}} of {{EU Cookie Law}}: {{Results}} and {{Lessons Learned}}},
   shorttitle = {4 {{Years}} of {{EU Cookie Law}}},