2.3 Encryption

• Malware - malicious software that is downloaded onto a victim's device unknowingly.
• Viruses - malware that replicates itself and currupts your stored data and uses up all your memory until it crashes
• Worm - a program that replicates itself, it looks for vulnerability holes in the network to use to replicate itself. it will clog up the bandwidth, slowing the network down.
• Spyware - Malicious software that spies on activity and sends the data to the hacker
• Trojan horse - a piece of malicious software disguised as a legitimate program that contains a virus.
• Adware - software that displays unwanted ads to generate revenue for perpetrator
• Ransomware - A type of malware that encrypts a user's files and demands a ransom to decrypt them
• SQL injection - a technique used to gain access to a database by inserting malicious code into a SQL query.
• DoS - A cyber attack that sends overwhelming numbers of packets to a server to slowing down the network or bring it to a stop
• Social engineering - analysing a specific person to gain access to their or their associations data.
• packet sniffing - capturing data sent over a network.
• Encryption - processing cypher data through an algorithm to make it unusable.
• Symmetric encryption - When there is a single key to encrypt and decrypt data.
• Asymmetric encryption - There's a public key that is used to encrypt data, and a private key that is used to decrypt data.
• Encryption key - A key used to encrypt or decrypt data.
• Strong encryption keys are created using a hashing algorithm.
• Hashing algorithm - a non-reversable mathematical algorithm. when the input is processed through the algorithm it's unable to be converted back