diff --git a/blog/posts/biometrics-explained.md b/blog/posts/biometrics-explained.md
index bf04ebe4..07e85630 100644
--- a/blog/posts/biometrics-explained.md
+++ b/blog/posts/biometrics-explained.md
@@ -34,13 +34,11 @@ Capacitive sensors measure the electrical conductivity of your finger. These are
 
 Capacitive sensors won't work if the [tissue is dead](https://www.livescience.com/62393-dead-fingerprint-unlock-phone.html), since dead tissue loses all electical charge. So morbid worries about someone using your dead body to unlock your phone can be assuaged.
 
-They're also hard to fool with prosthetics since the material will have different properties than live skin.
-
 Conveniently they also don't require a light source under them to work.
 
 ### Ultrasonic Fingerprint Sensors
 
-
+Ultrasonic fingerprint sensors use sound 
 
 ## Face Unlock