Disadvantages Of Email

Spoofing and Spamming It is relatively easy to write a program that will give a fake address in the 'From' field of an email, thus leading the receiver to believe the email is from a trusted source. Email viruses do this routinely. Many individuals have found it funny to send an email as though the President of the USA. this is spoofing. Spamming is using email to conduct a junk mail campaign. It is so easy to do that unregulated it can flood people's inboxes.

Virus A harmful piece of code that attaches itself to programs or files. A virus is capable of replicating itself once it is opened . for example , when a new program is opened it can be  further cue for the virus to replicate it self , allowing it to spread rather like a biological virus.

Worm A particular species of virus that is capable of replicating itself in great volumes once installed without further files being opened . furthermore, because they are capable of 'burrowing' into a system without human assistance, some worms can allow their creators to take control of computer systems remotely.

Trojan Another virus in the form of a piece of code, named after Trojan horse. it is usually dressed up as an attractive attachment or download but many harbour a unwelcome payload. once installed on a user's machine it can do damage to a user's system and possibly take control of the user's machine.