You probably came across a banner in a website that says your computer is too slow and you need to download software that will increase your computer’s speed. You may think that this is a legitimate diagnosis but actually it is not. It is a scheme to make computer users download malwares in their computer. In reality, they are actually slowing their computers down instead of speeding it up. Aside from slowing the computer, here are some bad things that malwares do.
First, they run programs without the knowledge of the user. Most of these programs are phishing programs that run in the background. Since these are not authorized programs, users will wonder why their computer has suddenly become too slow and worse it will eventually hang-up. They will only know that the real culprit was the malware when they have antimalware programs or if they really check the programs running through the task manager. Eating up the memory and slowing down the computer is a big problem to many.
With the phishing programs running in the background, they will know the websites that you are accessing, gain access to your personal files at some extent and make your computer vulnerable to other attacks. They will also know some of the passwords and usernames that you are using and if they see that you are using your personal data, they might get their hands on your credit card information. It is really important to be vigilant against malware attacks. Always be wary on the programs that you download.