How do malicious actors gain control of computer systems?

Here are some common methods used to threaten cyber-security:

Malware means malicious software. One of the most common cyber threats, malware is software that a cybercriminal or hacker has created to disrupt or damage a legitimate user’s computer. Often spread via an unsolicited email attachment or legitimate-looking download, malware may be used by cybercriminals to make money or in politically motivated cyber-attacks. There are a number of different types of malware, including:

Virus

A self-replicating program that attaches itself to a  clean file and spreads throughout a computer system, infecting files with malicious code.

 

 

 

Trojans

A  type of malware that is disguised as legitimate software. Cybercriminals trick users into uploading Trojans onto their computer, where they cause damage or collect data.

 

 

 

 

Spyware

A self-replicating program that attaches itself to a   clean file and spreads throughout a computer system, infecting files with malicious code.

 

 

 

Ransomware

Malware which locks down a user’s files and data, with the threat of erasing it unless a ransom is paid.

 

 

 

Adware

Advertising software which can be used to spread malware.

 

 

 

Botnets

Networks of malware infected computers which cybercriminals use to perform tasks online without the user’s permission.

 

 

 

More on common methods used to threaten cyber-security

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