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The Internet: Cybersecurity & Crime

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    The Internet: Cybersecurity and Crime
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    Hi, my name's Jenny Martin and I'm the
    director of cyber security
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    investigations at Symantec. Today
    cybercrime causes huge problems for
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    society personally, financially, and even
    in matters of national security. Just in
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    the last few years hundreds of millions
    of credit card numbers have been stolen,
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    tens of millions of Social Security
    numbers and healthcare records were
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    compromised, even nuclear centrifuges
    that have been hacked, and unmanned
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    aerial drones have been hijacked. This is
    all done by exploiting vulnerabilities
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    in hardware and software or more often
    by taking advantage of unintentional
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    decisions made by the people using the
    software. People committing these cyber
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    crimes don't a single profile or
    motivation it could be anyone from an
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    international terrorist to a teenager competing
    for bragging rights. Today the largest
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    countries not only have a regular army
    but also have a well armed cyber army. In
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    fact the next World War may not be
    fought with traditional weapons, but with
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    computers used to shut down national
    water supplies, energy grids, and
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    transportation systems. Hi my name is Parisa and
    I'm Google Security Princess. I've worked
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    on a lot of different products
    and a lot of different ways to try and
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    make our software as secure as possible.
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    Now let's take a look at how cybercrime
    works under the hood
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    will learn about software viruses,
    denial-of-service attacks, and phishing
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    scams. In biology and life, a virus is an
    organism that is spread by coughing,
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    sneezing, or physical contact.
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    Viruses work by infecting cells,
    injecting their genetic material, and
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    using those cells to replicate. They can make people really sick and then spread to other people.
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    A computer virus works bit similarly. A
    virus is an executable program that gets
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    installed, usually unintentionally, and harms the user and their computer. It's also
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    possible for a virus to spread itself to other
    computers. Now how does a virus get on your
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    computer in the first place? There are a
    couple ways an attacker can infect someone's
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    computer. They might lure a victim into
    installing a program with deception about the
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    program's purpose, so for example a lot
    of viruses are disguised as security updates.
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    It's also possible that the software on your computer has a vulnerability, so an attacker can install itself
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    without even needing explicit permission.
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    Once a virus is on your computer it can
    steal or delete any of your files,
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    control other programs, or even allow
    someone else to remotely control your
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    computer.
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    Using computer viruses, hackers can take
    over millions of computers world wide
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    and then use them as a digital army, otherwise known as a botnet, to attack and take down websites.
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    This kind of attack is called a
    distributed denial of service.
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    A denial of service is when hackers
    overwhelm a website with too many
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    requests. We call it a distributed
    denial-of-service when the attack comes from many
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    computers all at once.
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    Most websites are ready to respond to
    millions of requests a day, but if you
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    hit them with billions or trillions of requests, coming from different places,
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    the computers are overloaded and stop
    responding. Another trick used by
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    cybercriminals is to send large amounts of spam
    email in an attempt to trick people
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    into sharing sensitive personal information.
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    This is called a phishing scam. A phishing scam is when you get what seems like a
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    trustworthy email asking you to log
    into your account, but clicking the email
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    takes you to a fake website.
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    if you log in anyway you've been
    tricked into giving your password away.
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    Hackers can then use your login
    credentials to access your real accounts
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    to steal information or maybe even to
    steal your money. Fortunately there are
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    many companies, laws, and government
    organizations working to make the
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    internet safer, but these efforts are
    not enough.
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    You may think when a computer system
    gets hacked the problem was the security
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    design or the software. Ninety percent
    of the time the system gets hacked
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    however, it's not because of the security bug, but because of a simple mistake made by
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    a human. It turns out there are steps we
    can all take to protect ourselves. Often
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    your actions not only impact the
    security of your own data and computer, but the
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    security of everyone at your school,
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    workplace, and home. With billions or
    trillions of dollars at stake
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    cybercriminals get smarter each year and
    we all need to keep up.
Title:
The Internet: Cybersecurity & Crime
Description:

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Video Language:
English
Duration:
05:02

Urdu subtitles

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