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authorMohit Agarwal <mohit.agarwal@sky.com>2024-01-01 18:55:33 +0000
committerMohit Agarwal <mohit.agarwal@sky.com>2024-01-01 18:55:33 +0000
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tree5f87496cb57f51812871cb53bdbd4199ef0fa24c /notes/cyber.tex
parent9923e6e6fcc27a1a0f233b13e4c83d5d0c10b4d0 (diff)
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@@ -5,18 +5,19 @@ networks, and malicious threats and attacks that they are vulnerable
to.
\section{Threats}
-
-\begin{itemize}
- \item \textit{Social engineering} involves exploiting people
+ \textit{Social engineering} involves exploiting people
directly for access or information. \textit{Blagging} involves
obtaining information through deception or impersonation, such
as calling someone whilst posing as a friend.
- \textit{Phishing} is posing as a legitimate organisation to
+
+ \noindent\textit{Phishing} is posing as a legitimate organisation to
obtain personal information, generally through email.
- \textit{Pharming} involves a bogus website that imitates a
+
+ \noindent\textit{Pharming} involves a bogus website that imitates a
legitimate one. \textit{Shouldering} involves watching
somebody enter their personal information.
- \item \textit{Malicious code} is code written to do bad. A
+
+ \noindent\textit{Malicious code} is code written to do bad. A
\textit{virus} does damage on a computer and spreads itself on
a user's device over the internet. \textit{Spyware} is
software that monitors, logs, and sends information to the
@@ -26,28 +27,34 @@ to.
is designed to show the user advertisement and a
\textit{Trojan} is any malware that poses as a legitimate
software.
- \item \textit{Weak passwords} or \textit{misconfigured access
+
+ \noindent\textit{Weak passwords} or \textit{misconfigured access
rights} may allow an attacker easy access to unauthorised
data. Access rights would normally restrict certain
information from certain users.
- \item \textit{Removable media} such as a DVD or USB flash drive is
- a vector by which malware can easily spread, particularly when
- distributed, such as at a public event.
- \item Unpatched or outdated software may contain vulnerabilities,
- as well as normal software with recently discovered
- vulnerabilities which an attacker could exploit.
-\end{itemize}
+
+ \noindent\textit{Removable media} such as a DVD or USB flash drive is
+ a vector by which malware can spread, particularly when
+ distributed, such as at an event
+
+ \noindent\textbf{Unpatched or outdated} software may contain
+ widely known vulnerabilities, which an attacker could exploit.
\section{Threat prevention}
-\subsection{MAC Address filtering}
+\subsection{MAC address filtering}
-A \textit{MAC Address} is unique to each device. Filtering MAC
-Addresses could mean only allowing authorised devices to connect to
-the network (\textit{whitelisting}) or blocking certain devices from a
-network (\textit{blacklisting}). However, this is bypassable through
-MAC address \textit{spoofing}, where a device can appear to have a MAC
-address other than its own.
+A \textit{media access control address} is unique to each device. Filtering MAC
+addresses could mean:
+\begin{itemize}
+ \item \textit{whitelisting}, or only allowing authorised devices
+ to connect to or
+ \item \textit{blacklisting} which is blocking certain devices from
+ a network.
+\end{itemize}
+However, this is bypassable through MAC address \textit{spoofing},
+ where a device can appear to have a MAC address other than its
+ own.
\subsection{Firewall}
@@ -62,8 +69,8 @@ most common form of this is through a username and password. It can
also be through physical objects such as cards (such as credit card)
and through biometric methods such as fingerprints.
-CAPTCHA (tests that determine if a user is a human, such as by typing
-in a word in strange font) and e-mail verification (where the user
+CAPTCHA (tests that determine if a user is a human)
+and e-mail verification (where the user
must respond to an e-mail only they could have received) can also be
used as authentication and to ensure that the user is human and not an
automated attack.