diff --git a/README.md b/README.md
index f3b9c75..6a1444e 100644
--- a/README.md
+++ b/README.md
@@ -980,6 +980,7 @@ performance of any of your sites from across the globe.
:small_orange_diamond: How fucked is my database - evaluate how fucked your database is with this handy website.
:small_orange_diamond: Linux Troubleshooting 101 , 2016 Edition - everything is a DNS Problem...
:small_orange_diamond: Five Whys - you know what the problem is, but you cannot solve it?
+ :small_orange_diamond: Maersk, me & notPetya - how did ransomware successfully hijack hundreds of domain controllers around the world in one company?
:small_orange_diamond: howhttps.works - how HTTPS works ...in a comic!
:small_orange_diamond: howdns.works - a fun and colorful explanation of how DNS works.
:small_orange_diamond: POSTGRESQLCO.NF - your postgresql.conf documentation and recommendations.