Fabrizio d'Amore damore@dis.uniroma1.it - Sapienza

unwanted e-­‐‐mail
messages
• SPAM = unwanted ads (?)
o
both normal and low quality merchandize (drugs,
pharmacy, dating, online sex, pirated software/
multimedia etc.)
• frauds/malware
o
o
o
o
o
o
o
o
o
"write here your username/password"
"write here your credit card number"
"help me to retrieve $ 20 000 000 …"
"you haven't claimed your € 500 prize"
loans and funds at lowest rates
"I'm so lonely and looking for love…"
"you won the lottery"
"the message you have sent is undeliverable”
“invoice to be paid: click here”
• e-mail chain letters
o exponential growth
• all of above, joint to low-quality automatic
language translation
E-Mail intro (2) March 2013 14