--- a/LINKS	Wed Apr 19 11:41:39 2017 +0100
+++ b/LINKS	Wed May 31 09:26:47 2017 +0100
@@ -1,3 +1,16 @@
+
+BufferOverflow
+http://seclists.org/oss-sec/2017/q2/344
+===========
+
+
+curated security list
+https://github.com/qazbnm456/awesome-web-security
+
+--------------
+youtube ethical hacking
+https://www.youtube.com/watch?v=vg9cNFPQFqM
+
 https://wikileaks.org/ciav7p1/#PRESS
 
 CIA leaks
@@ -10,4 +23,8 @@
 
 ------------
 voting book
-https://www.crcpress.com/Real-World-Electronic-Voting-Design-Analysis-and-Deployment/Hao-Ryan/p/book/9781498714693?promo=DWR04&utm_medium=email&utm_source=ExactTarget&utm_campaign=170401412_1910641
\ No newline at end of file
+https://www.crcpress.com/Real-World-Electronic-Voting-Design-Analysis-and-Deployment/Hao-Ryan/p/book/9781498714693?promo=DWR04&utm_medium=email&utm_source=ExactTarget&utm_campaign=170401412_1910641
+
+
+blockchain
+https://medium.com/@lhartikk/a-blockchain-in-200-lines-of-code-963cc1cc0e54
\ No newline at end of file

--- a/handouts/ho01.tex	Wed Apr 19 11:41:39 2017 +0100
+++ b/handouts/ho01.tex	Wed May 31 09:26:47 2017 +0100
@@ -30,6 +30,10 @@
 % IoT
 % https://nakedsecurity.sophos.com/2015/10/26/the-internet-of-things-stop-the-things-i-want-to-get-off/
 
+% cloning creditc cards and passports
+%https://www.youtube.com/watch?v=-4_on9zj-zs
+
+
 \section*{Handout 1 (Security Engineering)}
 
 

--- a/handouts/ho08.tex	Wed Apr 19 11:41:39 2017 +0100
+++ b/handouts/ho08.tex	Wed May 31 09:26:47 2017 +0100
@@ -23,6 +23,21 @@
 % bit-coin papers
 % https://crypto.stanford.edu/cs251/syllabus.html
 
+% bit coin talk --- at 20:00 mins
+%https://www.usenix.org/conference/lisa16/conference-program/presentation/perlman
+
+% In fact, far from freeing people from the oppression of the state,
+% blockchains perversely promise the perfect tool for a fully
+% auditable, tax compliant, cashless society. Similarly, the belief it
+% is an anonymous digital cash has quickly vanished and we are now
+% seeing a large number of analytics companies, set-up specifically to
+% work with law enforcement agencies, to police this new parallel
+% financial system.
+%
+% But today blockchain is riddled with
+% contradictions and misunderstandings. Most of its problems are very
+% fixable, if you want to fix them
+
 \begin{document}
 \fnote{\copyright{} Christian Urban, 2014, 2015}