Malware (malicious software) is any software designed to gain unauthorised access to or damage a computer. Types of malware include viruses, Trojan horses, worms, adware, spyware and ransomware.
An infected device makes you vulnerable to cybercrimes like identity theft, fraud and extortion. Malware can also cause technical issues like slow performance, data corruption, and strange computer behaviour.
Simple tasks like opening an email, downloading a file or visiting a website can allow malware to infect your computer. Help protect yourself against malware by:
- Installing antivirus software and a firewall.
- Keeping software (particularly your antivirus, browser and operating system) up to date.
- Avoid downloading suspicious attachments and files.
- Avoid opening suspicious emails or webpages.
- Keeping data backups.
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