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security/network_security/index.html

@@ -1523,7 +1523,7 @@ Correspondence between layers of the TCP/IP architecture and the OSI model. Also
 <h3 id="pgp-smime-email-security">PGP &amp; S/MIME : Email Security</h3>
 <ul>
 <li>There are several security protocols at the application layer. The most used of these protocols are email security protocols namely PGP and S/MIME.</li>
-<li>SMTP (“Simple Mail Transfer Protocol”) is used for sending and delivering from a client to a server via port 25: it’s the outgoing server. On the contrary, POP (“Post Office Protocol”) allows the user to pick up the message and download it into his inbox: it’s the incoming server. The latest version of the Post Office Protocol is named POP3, and it’s been used since 1996; it uses port 110</li>
+<li>SMTP (“Simple Mail Transfer Protocol”) is used for sending and delivering from a client to a server via port 25: it’s the outgoing server. On the contrary, POP (“Post Office Protocol”) allows the users to pick up the message and download it into their inbox: it’s the incoming server. The latest version of the Post Office Protocol is named POP3, and it’s been used since 1996; it uses port 110</li>
 </ul>
 <p>PGP</p>
 <ul>
@@ -1540,9 +1540,9 @@ Correspondence between layers of the TCP/IP architecture and the OSI model. Also
 </ul>
 <p>S/MIME</p>
 <ul>
-<li>SMTP can only handle 7-bit ASCII text (You can use UTF-8 extensions to alleviate these limitations, ) messages. While POP can handle other content types besides 7-bit ASCII, POP may, under a common default setting, download all the messages stored in the mail server to the user's local computer. After that, if POP removes these messages from the mail server. This makes it difficult for the user to read his messages from multiple computers.</li>
+<li>SMTP can only handle 7-bit ASCII text (You can use UTF-8 extensions to alleviate these limitations, ) messages. While POP can handle other content types besides 7-bit ASCII, POP may, under a common default setting, download all the messages stored in the mail server to the user's local computer. After that, if POP removes these messages from the mail server. This makes it difficult for the users to read their messages from multiple computers.</li>
 <li>The Multipurpose Internet Mail Extension protocol (MIME) was designed to support sending and receiving email messages in various formats, including nontext files generated by word processors, graphics files, sound files, and video clips. Moreover, MIME allows a single message to include mixed types of data in any combination of these formats.</li>
-<li>The Internet Mail Access Protocol (IMAP), operated on TCP port 143(only for non-encrypted), stores (Configurable on both server &amp; client just like PoP) incoming email messages in the mail server until the user deletes them deliberately. This allows the user to access his mailbox from multiple machines and download messages to a local machine without deleting it from the mailbox in the mail server.</li>
+<li>The Internet Mail Access Protocol (IMAP), operated on TCP port 143(only for non-encrypted), stores (Configurable on both server &amp; client just like PoP) incoming email messages in the mail server until the user deletes them deliberately. This allows the users to access their mailbox from multiple machines and download messages to a local machine without deleting it from the mailbox in the mail server.</li>
 </ul>
 <p>SSL/TLS</p>
 <ul>

security/threats_attacks_defences/index.html

@@ -1604,12 +1604,12 @@ the typical time to live (TTL) for cached entries is a couple of hours, thereby
 <li>Injecting bogus route advertising information into the BGP-distributed routing database by malicious sources, accidentally or routers can disrupt Internet backbone operations. </li>
 <li>Blackholing traffic:</li>
 <li>Blackhole route is a network route, i.e., routing table entry, that goes nowhere and packets matching the route prefix are dropped or ignored. Blackhole routes can only be detected by monitoring the lost traffic.</li>
-<li>Blackhole routes are the best defence against many common viral attacks where the traffic is dropped from infected machines to/from command &amp; control masters.</li>
+<li>Blackhole routes are the best defence against many common viral attacks where the traffic is dropped from infected machines to/from command &amp; control hosts.</li>
 <li>
 <p>Infamous BGP Injection attack on Youtube</p>
 </li>
 <li>
-<p>EX: In 2008, Pakistan decided to block YouTube by creating a BGP route that led into a black hole. Instead, this routing information got transmitted to a hong kong ISP and from there accidentally got propagated to the rest of the world meaning millions were routed through to this black hole and therefore unable to access YouTube.</p>
+<p>Ex: In 2008, Pakistan decided to block YouTube by creating a BGP route that led into a black hole. Instead, this routing information got transmitted to a hong kong ISP and from there accidentally got propagated to the rest of the world meaning millions were routed through to this black hole and therefore unable to access YouTube.</p>
 </li>
 <li>Potentially, the greatest risk to BGP occurs in a denial of service attack in which a router is flooded with more packets than it can handle. Network overload and router resource exhaustion happen when the network begins carrying an excessive number of BGP messages, overloading the router control processors, memory, routing table and reducing the bandwidth available for data traffic.</li>
 <li>Refer: <a href="https://medium.com/bugbountywriteup/bgp-the-weak-link-in-the-internet-what-is-bgp-and-how-do-hackers-exploit-it-d899a68ba5bb">https://medium.com/bugbountywriteup/bgp-the-weak-link-in-the-internet-what-is-bgp-and-how-do-hackers-exploit-it-d899a68ba5bb</a></li>