Systems attacks and threats (malware (Malware Viruses and Worms (They…
Systems attacks and threats
Malware means to cause an act of harm to software.
Malware are executable programs that run on a computer
One type of a Malware that exists is a virus.
Malware Viruses and Worms
They replicate their code in other prograns
They infect other programs
They harm the computer by deleting, corrupting or modifying files.
Worms infect other computers by replicating itself, they might cause no damage to the attacked computers.
They slow down networks and computers
Malware Trojan horses
They are a program, game or something that the user wants. Then when theyare used they take control, cause damage or provide access to the computer.
Holds a computer hostage by encrypting or locking access to it.
If the data is encrypted, not even a cyber security professional will be able to recover data unless backups are available.
Once a ransom is paid to the hacker the software is restored.
Reasons for attacking systems
Industrial espionage - the aim is to find intellectual property such as designs or blueprints for products, business strategies or software source code.
Personal attacks - An employee may be upset and attack the company or a friend could be upset over another friends actions.
Information / Data theft - credit cards and financial information may be stolen to steal money, company information may also be stolen.
Denial of service
In a denial of service attack, a hacker will use or infect a computer so that - it floods a server with requests so that the server can not respond fast enough and it shuts down.
In a distributed denial of service attack (DDos) many computers are used to send the requests.