The new company is proud of their products because they are the least likely to be victims of malware.
The kids were warned to not visit a certain website because malware and viruses on it could infect their computers.
Just typing "Old English" into a search engine may yield sites that have malware hidden in the background or that pretend to offer you free fonts, but those sites also make you sign up for an account for a certain monthly subscription.
Boss, you had so much malware I don't know how you got anything done.
Malware threats began to show up on the old desktop computer, slowing its performance.