6 \section*{Homework 2} |
6 \section*{Homework 2} |
7 |
7 |
8 \HEADER |
8 \HEADER |
9 |
9 |
10 \begin{enumerate} |
10 \begin{enumerate} |
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11 \item Another question for thinking like an attacker: Imagine |
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12 you have at home a broadband contract with TalkTalk. You |
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13 do not like their service and want to switch to Virgin, |
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14 say. The procedure between the Internet providers is |
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15 that you contact Virgin and set up a new contract and |
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16 they will automatically inform TalkTalk to terminate the |
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17 old contract. TalkTalk will then send you a letter to |
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18 confirm that you want to terminate. If they do not hear |
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19 from you, they will proceed with terminating the |
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20 contract and will request any outstanding cancellation |
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21 fees. Virgin on the other hand sends you a new router |
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22 and paperwork about the new contract. Obviously this way |
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23 of doing things is meant to make switching as convenient |
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24 as possible. Still can you imagine situations in which |
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25 this way of switching providers can cause you a lot of |
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26 headaches? For this consider that TalkTalk needs |
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27 approximately 14 days to reconnect you and might ask for |
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28 reconnection fees. |
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29 |
11 \item Often problems in e-voting are due to difficulties with |
30 \item Often problems in e-voting are due to difficulties with |
12 authentication. Keep this in mind for what could go |
31 authentication. Keep this in mind for what could go |
13 wrong with the following discount offered by an |
32 wrong with the following discount offered by an |
14 insurance company: John Hancock Insurance is partnering |
33 insurance company: John Hancock Insurance is partnering |
15 with Vitality, which you might know as one of those |
34 with Vitality, which you might know as one of those |