diff --git a/4_Privacy_And_Security_Links.md b/4_Privacy_And_Security_Links.md
index aef4ccb..70defb8 100644
--- a/4_Privacy_And_Security_Links.md
+++ b/4_Privacy_And_Security_Links.md
@@ -48,6 +48,7 @@
   - Beginners guide to I2P: via [The Tin Hat](https://thetinhat.com/tutorials/darknets/i2p.html)
   - How to Use a VPN and Tor together: via [ProPrivacy](https://proprivacy.com/vpn/guides/using-vpn-tor-together)
   - How to use `__nomap`, to reduce public exposure of SSID: via [ghacks](https://www.ghacks.net/2014/10/29/add-_nomap-to-your-routers-ssid-to-have-it-ignored-by-google-and-mozilla/)
+  - Detailed guide, outlining up-to-date router configurations for ultimate security: via [RouterSecurity.org](https://routersecurity.org/)
 - **Communication**
   - Email Self-Defense, Configure your mail client securly, from scratch - via [FSF.org](https://emailselfdefense.fsf.org)
   - How to avoid Phishing Attacks: via [EFF](https://ssd.eff.org/en/module/how-avoid-phishing-attacks)