KeRanger was one of the first significant ransomware outbreaks for Macs. One of their more popular uses is to deliver destructive viruses and malware. Macro viruses are capable of creating new files, corrupting data, moving text, sending files, formatting hard drives, and inserting pictures, among other things. The macro then tries to run a code that could perform functions such as taking screenshots and even accessing webcams. Macro viruses go to work when a user opens an infected file with macros enabled. Microsoft Word macro viruses have been around for a long time, mainly affecting PCs, but eventually jumping over to the Mac OS. The MacDownloader malware was a form of spyware that attempted to steal personal data, including the user’s keychain, which stores usernames, passwords, PINs, credit card numbers, and more. Dubbed “MacDownloader,” it was malicious software hiding in a fake Adobe Flash update. One notable Apple computer Trojan horse was found in February 2017. Trojan horses are common to Macs and PCs. This information could be used to commit crimes, such as identity theft, fraud, or even extortion.Īlthough they’re not malicious, even benign pop-up ads can be extremely annoying and intrusive. Adware can also send information back to a third-party server. Pop-up ads can lead users to malicious websites that could deliver data-stealing spyware onto their Macs. Some adware can work in conjunction with spyware, a type of software that can spy on and record everything you do online. Four types of Apple viruses - and a vulnerabilityĪpple viruses can range from annoying to outright damaging.Īdware is a potentially unwanted program that can bombard users with advertising pop-ups. Read on to learn more about some of the most common malware and viruses that can affect Apple devices, what the signs are, and what you can do to help protect your devices.

Adware, spyware, ransomware, and hardware and software vulnerabilities are some of the problems now affecting Macs, and not just PCs.

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