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Definition of cyber crime. Cybercrime is nothing but where the computer used as an object or subject of crime!. Crime committed using a computer and the internet to steal a person’s identity!!. Illegal imports. Malicious programs 6. History of cyber crime. The first recorded cyber crime took place in 1920.
My name's Jenny Martin and I'm the Director of Cybersecurity Investigations at Symantec. Today cybercrime causes huge problems for society. Personally, financially, and even in matters of national security. Just in the last few years, hundreds of millionsof credit card numbers have been stolen.
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Tens of millions ofsocial security numbers and health care records were compromised. Even nuclear centrifuges have been hacked and unmanned aerialdrones have been hijacked. This is all done byexploiting vulnerabilities in hardware and software. Or more often by taking advantage of unintentional decisions made by the people using the software. The people committing these cybercrimes don't fit a single profile or motivation.
It could be anyone from aninternational terrorist, to a teenager competingfor bragging rights. Today, the largest countries not only have a regular army, but also have a well-armed cyber army. In fact, the next world war may not be fought with traditional weapons but with computers, used to shut down national water supplies, energy grids, and transportation systems.
My name is Parisa and I'm Google's Security Princess. I've worked on a lot ofdifferent Google products in a lot of different waysto try and make our software as secure as possible. Now let's take a look at how cybercrime works under the hood. We'll learn about software viruses, denial-of-service attacks,and phishing scams. In biology in life, a virus is an organism that is spread by coughing, sneezing, or physical contact. Viruses work by infecting cells, injecting their genetic material and using those cells to replicate.
They can make people really sick and then spread to other people. A computer virus works a bit similarly. A virus is an executable program that gets installed,usually unintentionally, and harms a user and their computer.
It's also possible fora virus to spread itself to other computers. Now how does a virus get on your computer in the first place? There are couple ways an attacker can infect someone's computer. They might lure a victiminto installing a program with deception aboutthe program's purpose. So for example, a lotof viruses are disguised as security updates.
It's also possible that thesoftware on your computer has a vulnerability. So an attacker can install itself without even needing explicit permission. Once a virus in on your computer it can steal or delete any of your files, control other programs,or even allow someone else to remotely control your computer. Using computer viruses,hackers can take over millions of computers worldwide. And then use them as a digital army, otherwise known as a botnet, to attack and take down websites. This kind of attack is called a distributed denial-of-service. A denial-of-service is when hackers overwhelm a websitewith too many requests.
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We call it a distributed denial-of-service when the attack comes from many computers all at once. Most websites are ready to respond to millions of requests a day, but if you hit them withbillions or trillions of requests coming from different places, the computers are overloadedand stop responding.
Another trick used by cybercriminals is to send large amounts of spam email in an attempt to trick people into sharing sensitivepersonal information. This is called a phishing scam. A phishing scam is when you get what seems like a trustworthy email asking you to login to your account, but clicking the emailtakes you to a fake website. If you login anyway, you've been tricked into giving your password away.
Hackers can then useyour login credentials to access your real accounts to steal information, or maybe even to steal your money. Windows 7 iso torrent kat. Fortunately there are many companies, laws, and government organizations working to make the internet safer.
But these efforts are not enough. You may think when acomputer system gets hacked, the problem was the security design, or the software. 90% of the time a systemgets hacked however, it's not because of a security bug, but because of a simplemistake made by a human. It turns out there aresteps we can all take to protect ourselves. Often, your actions not only impact the security of yourown data and computer, but the security of everyone at your school, workplace, and home. With billions or trillionsof dollars at stake, cybercriminals get smarter each year, and we all need to keep up.