The document discusses black hat and white hat hackers. [1] Black hat hackers illegally exploit computer systems for personal gain or fun, while white hats work as certified ethical hackers testing company security or create useful tools without breaking laws. [2] It profiles several famous black hat hackers like Jonathan James, Adrian Lamo, and Kevin Mitnick who served prison time for computer crimes, and white hats like Stephen Wozniak, Linus Torvalds, and Richard Stallman who created important operating systems and advocated for free, ethical software. [3]

1. Top 10 Most Famous
Hackers of All Time
Uroš Tasić

2. Black Hat Hackers vs. White Hat
Hackers
• “black hats” exploit computer systems. They
are the ones you've seen on the news being
hauled away for cybercrimes. Some of them do
it for fun and curiosity, while others are looking
for personal gain.
• “white hats” often work as certified "Ethical
Hackers" hired by companies to test the
integrity of their systems. Others, operate
without company permission by bending but
not breaking laws and in the process have
created some really cool stuff.

3. Black Hat Hackers
Jonathan James
• First juvenile to be sent to prison for hacking,
served six months in prison
• Crimes:
– Installed a backdoor into a Defense Threat
Reduction Agency server
– Cracked into NASA computers, stealing software
worth approximately $1.7 million

4. Black Hat Hackers
Adrian Lamo
• Sentence: six months of home confinement
and two years of probation, 65.000$ in
restitution
• Crimes:
– Penetration testing, in which he found flaws in
security, exploited them and then informed
companies of their shortcomings (Yahoo!, Bank
of America)
– Brake into The New York Times' intranet

5. Black Hat Hackers
Kevin Mitnick
• Crimes:
– Breaking into the Digital Equipment Corporation's
computer network and stealing software
– Half year "coast-to-coast hacking spree"
• Sentence: five years in prison

6. Black Hat Hackers
Kevin Poulsen
• Sentence: five years in prison
• Crimes:
– KIIS-FM hack was accomplished by taking over
all of the station's phone lines
– Hack of federal investigation database and
federal computers for wiretap information

7. Black Hat Hackers
Robert Tappan Morris
• Sentence: years' probation, 400 hours of community
service and a fine of $10,500
• Crime:
– Creator of the Morris Worm - the first computer
worm to be unleashed on the Internet

8. White Hat Hackers
Stephen Wozniak
• Achievements:
– Blue boxes - devices that bypass telephone-
switching mechanisms to make free long-
distance calls.
– The computer as a fully assembled PC board
Awards: the National Medal of Technology, the
National Inventors Hall of Fame

9. White Hat Hackers
Linus Torvalds
• The Linux operating system
Torvalds: "I just want to have fun
making the best damn operating system
I can."

10. White Hat Hackers
Richard Stallman
• The GNU Project, which was founded to
develop a free operating system
Stallman: "Non-free software keeps users
divided and helpless, forbidden to share it and
unable to change it. A free operating system is
essential for people to be able to use
computers in freedom."
Richard Stallman - Free Software Song
http://www.youtube.com/watch?v=1BH7poMtPVU

11. White Hat Hackers
Tsutomu Shimomura
• Was hacked by Kevin Mitnick and
made it his cause to help the FBI
capture him.

12. Thank you for your attention!!!