differences for PR #133

vantage6 · Oct 8, 2024 · 2e6d110 · 2e6d110
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diff --git a/chap1_introduction_FL.md b/chap1_introduction_FL.md
@@ -201,20 +201,15 @@ In this way, they have aggregated their data without sharing their individual da
 :::
 
 ::::::::::::::::::::::::::::::::::::: challenge
-## 2. Oh no! A hacker!
-A hacker manages to get access to Mees' computer that contains the secret shares he received. Will
-the secrecy of the three weights still be preserved?
 
+## Oh no! A hacker!
+A hacker manages to get access to Mees' computer that contains his data and the secret shares he received. He also
+knows the result of the aggregation. Will the secrecy of the three weights still be preserved? What if the hacker 
+gets access to Sara's computer as well? Will Noors privacy be protected?
 
 :::::: solution
-When receiving a sum from a set of 3 individuals, every record makes up roughly 30% of the final answer.
-That is a big contribution. It can be quite easy to reconstruct the individual records, for example
-by crossreferencing with other datasets. Also, if you are able to get your hands on 2 of the datapoints,
-you will be able to fully reconstruct the third one.
-
-Trust is another factor here. If the different parties (Mees, Sara and Noor) have a high level of trust
-in eachother not to share their data, the risk level is lower than when the parties are known to occasionally
-leak their data, or don't have proper security set in place.
+If the hacker has access to the result, he can reconstruct Noors weight by subtracting Mees' and Sara's weight
+from the total. The secret shares are not adding any more relevant information.
 
 ::::::
 ::::::

diff --git a/chap5_python_client.md b/chap5_python_client.md
diff --git a/md5sum.txt b/md5sum.txt
@@ -5,7 +5,7 @@
 "index.md" "3ea3603bbfa84507ba579b5851194497" "site/built/index.md" "2024-07-30"
 "links.md" "8184cf4149eafbf03ce8da8ff0778c14" "site/built/links.md" "2022-04-22"
 "notes.md" "3f0d86e80ea5a8fec6a35d8c5b83e463" "site/built/notes.md" "2024-06-04"
-"episodes/chap1_introduction_FL.md" "2402b9a896dc79718fcced4249097e52" "site/built/chap1_introduction_FL.md" "2024-10-01"
+"episodes/chap1_introduction_FL.md" "cb1419316bf5199442682f7dbcf71037" "site/built/chap1_introduction_FL.md" "2024-10-08"
 "episodes/chap2_introduction_v6.md" "3edcd93e2e3adee629acd6a905900714" "site/built/chap2_introduction_v6.md" "2024-10-03"
 "episodes/chap3_run_analysis_ui.md" "4e9e22ba2d8e8f4e82741bac9585d067" "site/built/chap3_run_analysis_ui.md" "2024-09-17"
 "episodes/chap4_manage_via_ui.md" "2cb4a6e763979b8509664aaa96a27401" "site/built/chap4_manage_via_ui.md" "2024-09-24"