From 62b3816e0bd43ad6e696ab01026df95a60c72500 Mon Sep 17 00:00:00 2001
From: "Dr. Mia von Steinkirch"
 <1130416+F4DELEGATECALL@users.noreply.github.com>
Date: Sat, 22 Oct 2022 16:27:49 -0700
Subject: [PATCH] =?UTF-8?q?=F0=9F=8C=B6=20Practical=20overview=20of=20clas?=
 =?UTF-8?q?sic=20system=20security?=
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 README.md | 1 +
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diff --git a/README.md b/README.md
index 98f2408..c0de354 100644
--- a/README.md
+++ b/README.md
@@ -228,6 +228,7 @@ by dr. mia von Steinkirch, formely known as bt3gl (RIP). here is a [proof-of-og]
 * [ETH detective](https://www.ethtective.com/address/)
 * [EVM-trace, Ethereum Virtual Machine transaction tracing tool](https://github.com/ApeWorX/evm-trace)
 * [Sleuthing Hashed Function Signature and Event Signature on Ethereum](https://dune.com/agaperste/event-and-function-signature-sleuthing?)
+* [Pratical overview of classic system security](http://www.astro.sunysb.edu/steinkirch/books/security_hw.txt)