What is the process of encoding information in a way so that only someone with a key can decode it?
Encryption refers to the practice of encoding data so that only someone with the right key can read it. Clever code breakers can sometimes crack encrypted messages, requiring security experts to devise more complex encryption algorithms.
In computer security terms, what is a hash?
A hash or hash value is a string of characters that represent encrypted data. You create a hash value by running data through a hashing algorithm.
What does SSL stand for?
SSL stands for Secure Sockets Layer, a form of public key encryption.
What is a firewall?
A firewall acts as a filter for an Internet connection. It monitors incoming data and blocks certain data packets.
What is a proxy server?
Proxy servers act as middlemen for the Internet. They retrieve Web pages and send them to computers, which means the computer in question never has to deal with the server hosting the Web page directly.
What is another term for a zombie computer army?
A botnet is a network of computers that have transformed into bots -- devices under the control of a third party.
What does DDoS stand for?
A Distributed Denial of Service attack uses computers to send millions of message requests to a server with the goal of overwhelming and crashing the server. A large DDoS attack can affect global Internet traffic.
Which kind of malware typically resides in a larger, innocent computer program?
Traditionally, a computer virus is a line of code or a function within a larger computer program. While not all computer viruses are harmful, the most famous ones can cause a lot of damage.
What is phishing?
Phishing refers to a technique designed to fool innocent people into sharing private information like bank account numbers and credit card information.
What's another name for crackers -- malicious hackers who infiltrate secure systems in order to steal information or cause damage?
A black hat hacker is someone who actively attempts to infiltrate secure systems or build computer viruses with the intent to cause mischief or steal information.
Yes, computers can make life easier, but they also can put your private information at risk. Find out how much you know -- or don't know -- about computer security by taking our quiz.
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