Malicious software

Malicious software

Understanding malicious software

Malware are designed to infiltrate, damage or obtain information from a computer system without the owner’s consent. These include spywares, computer viruses and Trojan horses.

Spyware is a type of software that is installed on a device, without permission from user. It could monitor and record device user's device user information / internet behaviour by hiding its malicious purpose. It collects and transmits the gathered information (for example, personal credentials including user name, password and credit card numbers, etc.) to unauthorised third parties for own benefits.

Besides, various computer viruses can pose security threats to the device users. A virus may contain destructive code that can move into multiple programmes, data files or devices on a system and spread through multiple systems in a network, resulting in the malfunction of the devices and loss of the data.

There is one more type of malware called trojan horse. It can masquerade as innocent programme, take control of your device and perform illicit operations unnoticed by the users.

Countering invasion of malicious software

Please consider adopting the below measures in order to boost the security level of your devices and to avoid invasion of malicious software:

  • Install antivirus software, and update virus signature regularly in order to detect and prevent virus infection
  • Do not open or click emails, SMS or social media content issued by strangers or untrusted persons (including any attachments or inserted hyperlink)
  • Install the latest version of operating systems / browsers / software and the latest patches and security updates provided by manufacturers to eliminate software vulnerabilities
  • Never download any software or files from untrusted sources as malicious code could be implanted in the unofficially provided software
  • Run antivirus and/or anti-spyware software for malware detection before installation of a programme or opening a file
  • Set up a firewall to protect your network from malicious hacker who access your PCs and network resources