Βασικά Θέματα Ασφάλειας Διαδικτύου (ενότητα 1)
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:o , .o ( Internet ).o Internet.o vs .o
.o .
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1934: , , , , , . .
1940: . 1957: 1. ARPA ( )
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1968: RPANET .
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1971: . @, , 1 e-mail.
1983: ARPANET 2 : MILNET ARPANET .
1990: ARPANET 200.000.
1991: (www: World Wide Web) Internet (Tim Berners-Lee)
1995: 1 Yahoo.
http://en.wikipedia.org/wiki/Tim_Berners-Lee -
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(spoofing).
(tampering), (backdoors).
. (data
leak). (denial of
services). (elevation
of privileges).
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(spoofing)
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spoofing, Man In The Middle() .
Internet router
Router
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(spoofing)
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router . arpspoof router .
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Router
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(data leak)
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o MITM, .
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o , , .. , (kleptographic) , , .
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Distributed Denial of Services
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o , - Denial-of-Service (DoS) - Distributed Denial of Services (DdoS) .
o , DoS , ' .
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o DoS ' . DoS: .
o : DoS .
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DoS DDoS:
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(US-CERT) - denial-of-service
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1. ( web sites).
2. web site.3. .4. spam emails - ( DoS
e-mail).5. internet.6.
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o , .
o , Carnivore NarusInsight FBI NSA .
o (, ) , TEMPEST.
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(Eavesdropping)
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o "exploit" , , , .
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Exploits
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( hackers ) ( ) (malware), :
(viruses). (worms). (trojan horses).
(Spyware, Adwares). (backdoor).
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(worm) .
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Spyware ( ) ( ) , . . Spyware , ( , , ). . :
Spyware (adware): .
Spyware: .
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Spyware :
(Add-ons): Add-ons browser. , , ..
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spyware.
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(backdoors) , ().
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o e-mail , , .
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o browser . (cookies) .
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o email .
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o o o o o PIN (
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o avast!, AVG, AVIRA, BitDefender, ESET Smart, Security, F-Secure, G DATA, Kaspersky Lab Internet Security, McAfee, MacScan ( Mac), Microsoft Security Essentials, Norton Internet Security,TrendMicro, Malwarebytes.
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o o http://www.saferinternet.gr/o : .8001180015()o : .116111 ()o : .11012 o e-mail: [email protected] http://www.cyberkid.gov.gr/
http://www.saferinternet.gr/http://www.saferinternet.gr/http://www.saferinternet.gr/http://www.saferinternet.gr/http://www.saferinternet.gr/helplinehttp://www.tilefonikigrammi.gr/default.asphttp://www.astynomia.gr/index.php?option=ozo_content&perform=view&id=135&Itemid=128&lang=http://www.cyberkid.gov.gr/main/contact.htmlhttp://www.cyberkid.gov.gr/main/contact.htmlhttp://www.cyberkid.gov.gr/main/contact.htmlhttp://www.cyberkid.gov.gr/main/contact.html
