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Some common netiquettes are:
The subject of the email must be in relation to the matter of the email.
Signatures in an email should be small and simple.
Avoid sending repeated emails just for the publicity of a product or service.
Avoid typing in capital letters as typing in capitals is considered shouting at the person.
While writing an email, the person(s) whom you want to respond must be marked in the ‘To:’
field. The persons marked in the ‘Cc:’ field may or may not respond to the mail.
Avoid using the “Reply to All” option when it is not necessary to answer everyone marked in
the email.
Try to overlook the minor typing mistakes made by the sender.
If you are in charge of securing your school's computer lab, what steps would
you take to protect the computers from hackers, and how would you ensure
that your classmates' data stays safe?
CYBER THREATS
Cyber threat is a criminal activity in which computers are used to damage data, steal data, or
disrupt the digital life of a person. Most cyber threats are carried out in order to gain personal
profit. Some people break security only to check their skills.
Types of Cyber Threats
There are various types of cyber threats. Some of them are as follows:
Data Diddling
This refers to the process of changing the data going into or out of a computer. For example, a
student breaks into his/her university’s grade recording system and changes the grades he/she
earned in the last semester or class, thus raising his/her grade point average.
Phreaking
This crime is committed against telephone companies by using computers with the goal of
making free long-distance calls, impersonating directory assistance or other operator services,
diverting calls to numbers of the perpetrator’s choice, or tapping phone lines.
Cloning
This refers to a fraud in which scanners are used to steal the electronic serial numbers of cellular
phones, which may be used for billing purposes and making broadcast calls. With stolen serial
numbers, clones can be made to make free calls that are billed to the owner of the original cell
phone.
Carding
This refers to the process of stealing credit card numbers online, to be resold or used to charge
merchandise against the victim’s account.
114 iPRIME (Ver. 2.2)–VI

