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Security can be broadly categorized under the following headings, with examples: Hiding the content or nature of a communication Code – a rule to convert a piece of information (for example, a letter, word, phrase, or gesture) into another form or representation (one sign into another sign), not necessarily of the same type. In communications ...
The field includes cryptographic security, transmission security, emissions security and physical security of COMSEC equipment and associated keying material. COMSEC is used to protect both classified and unclassified traffic on military communications networks, including voice, video, and data. It is used for both analog and digital ...
• Fake email addresses - Malicious actors sometimes send from email addresses made to look like an official email address but in fact is missing a letter(s), misspelled, replaces a letter with a lookalike number (e.g. “O” and “0”), or originates from free email services that would not be used for official communications.
Transmission security (TRANSEC) is the component of communications security that results from the application of measures designed to protect transmissions from interception and exploitation by means other than cryptanalysis. Goals of transmission security include: Low probability of interception (LPI) Low probability of detection (LPD)
Distributed networks including communication networks are usually designed so that nodes can enter and exit the network freely. [9] However, this poses a danger in which attacks can easily access the system and may cause serious consequences, for example, leakage of the user’s phone number or credit card number. [9]
It is an instance where either the speaker is unable to provide the proper and adequate information to the hearer or the hearer misperceived and couldn't recognise the communication from the speaker. The cases of miscommunication vary depending on the situation and persons included in it, but often result in confusion and frustration.
Internet security is a branch of computer security. It encompasses the Internet, browser security, web site security, [1] and network security as it applies to other applications or operating systems as a whole. Its objective is to establish rules and measures to use against attacks over the Internet. [2]
A digital secure voice usually includes two components, a digitizer to convert between speech and digital signals and an encryption system to provide confidentiality. It is difficult in practice to send the encrypted signal over the same voiceband communication circuits used to transmit unencrypted voice, e.g. analog telephone lines or mobile radios, due to bandwidth expansion.