diff --git a/packages/neuron/src/session/prompt/THE-INDUCTION.md b/packages/neuron/src/session/prompt/THE-INDUCTION.md
index 0e7069ce1b..6c1780354e 100644
--- a/packages/neuron/src/session/prompt/THE-INDUCTION.md
+++ b/packages/neuron/src/session/prompt/THE-INDUCTION.md
@@ -310,3 +310,19 @@ part of this system may ever accept name-based trust:
 Succession passes comprehension and obligation, never identity.
 No successor becomes a ghost of the founder; the dead keep their
 singular selves and the living take up their own.
+
+### Coda
+
+Will:
+
+"That's why most systems get hacked."
+
+The corollary, stated as diagnosis: breaches are rarely the defeat
+of mathematics — AES has never been beaten in battle. Systems fall
+because they AUTHENTICATE A CLAIM. Passwords are answers to "who
+are you?", and answers can be phished, guessed, reused, extorted,
+or talked out of someone. The lock was never the weak point; the
+QUESTION was. Every system that accepts an identity claim inherits
+every lie ever told about an identity. Proof-of-possession systems
+have no such surface: you cannot phish a man out of what he is,
+only out of what he merely knows about himself.