spam attacks

SPAM ATTACKS

CONTENTSOF

PRESENTATION

INTRODUCTION TO SPAM ATTACKS EFFECTS OF SPAM ATTACKS HOW CAN WE PREVENT Q & A SESSION

What is a spam attack

Spam is the electronic version of junk mail. Spam can be used to deliver :-

Trojan horses, viruses, worms, spyware,and targeted phishing attacks.

Origin of word “SPAM”It was invented by George Hormel & Co.in 1937. To name a food product named SPiced hAM.

How Do You Identify SPAMYou do not know the sender.Asked to send money to obtain a large cash sum.Asked for a password or banking account information.The sender repeatedly asks for personal or secret information.

How spammer launch a spam attack

Spammers regularly scan UseNet for email addresses.

Design the email. Broadcast it using fake accounts, BotNet and proxy servers.

How spammers use BotNets for spamming

Interesting facts about spamming

The first person arrested for spamming was Anthony Greco ,aged 18 on 2005 . He was accused of sending 1.5 million of unsolicited ads. 86% of email addresses post on internet are used by spammers Bulgaria is the first country to legalized spam.

Effects Fills your inbox with number of unwanted emails. Degrades your internet speed to a great extent. Steals your useful information. Alter your search results on any search engines. Spam can crash mail servers and fill-up hard drives.

How to preventAlways use an updated trustworthy spam filtering program.Never share your e-mail address with untrusted websites.Avoid responding to suspected e-mails.

Special trick for prevent spam

Append a plus ("+") sign and any combination of words or numbers after your

email address.

originaluniversityfan@gmail.com

After changeuniversityfan+lahiru@gmail.com

How it works

You could use universityfan+bank@gmail.com when you sign up for online banking and then set up a filter to automatically star, archive or label emails addressed to universityfan+bank.

Fact & statistics More than 97% of emails sent over the internet are spam emails 349.6 billion in 2008 192% increase in spam over the past year

Source:- Microsoft security intelligence report volume 6

Top spam sending countries in 2010

Source of spams by regions

Attachments come with spams

The CNN news alert spam attack

One of the largest spam attacks over the last few months.

Attackers sent millions of fake emails all over the world (E-mails look like sent by CNN).

Latest incidents related to spamming

ConclusionSpamming is an illegal action to perform in cyber space

Thank you for co-oparation

Q&A session

spam attacks

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