What You Need to Know About Mac Ransomware

Digital Fire • December 18, 2020

New strains of ransomware often affect many Windows computer systems but rarely affect Macintosh computers. There are some types of ransomware that specifically target Apple's machines. If your company mainly uses Macs, then defending against these threats is important. Here's what you should know about Mac ransomware.

What is Mac ransomware?

Ransomware is malware that locks up computers until a ransom is paid. It usually demands payment in gift cards or cryptocurrencies like Bitcoin or Ethereum. Phishing emails are used to distribute malware, but they can also be used to spread malware through unsecured network connections.

If Macs get infected by ransomware, users will not be able to use them because they're encrypted. Ransomware messages often threaten to release the information publicly or delete sensitive data if they aren't paid by a specified date. Health care and financial institutions, in particular, are most likely to pay the ransomware because they have a lot of valuable resources, such as money, and cannot afford to lose access to any of their critical information to ransomware threats.

Types of Mac ransomware

KeRanger ransomware was spread through the popular BitTorrent application Transmission. KeRanger was able to bypass Apple's built-in security mechanisms and install malware on thousands of Macs.

Another strain of Mac Ransomeware called Patcher was discovered in 2017. Ransomware disguised itself as an update for applications like Microsoft Word. When launched, Patched would encrypt files in user folders and require payment in Bitcoin. However, the ransomware was poorly written, so there was no easy method for recovering the encryption key once the ransom had been paid.

In 2019, the EvilQuest ransomware variant encrypted files and tried to trick users into paying a Bitcoin ransom. Like Patcher, however, PatchMe didn't provide any way for people who paid the ransomware to get their decrypted data back.

Ransomware outbreaks of malicious code like this one can occur at any time, so you need to be ready for them.

An ounce of prevention goes a long way

Preventative measures are the best ways to keep your Macs secure from ransomware and malicious software. You should update your software regularly to protect yourself from the latest security issues and install apps only from the official app store.

Ransomware initially spreads by sending malicious emails containing malware disguised as an attachment or link. Make sure to avoid these types of messages. Be vigilant even if it may appear to be from a reputable business or someone you know.

You must also maintain offline backups and have a disaster recovery plan to keep your business running in the off chance that ransomware successfully infiltrates your systems.

Responding to ransomware

If your Mac is affected by ransomware, don't pay the ransom fee, because there's no guarantee that they'll provide a decryption key for your files even if you pay them.

Instead, use an updated anti-virus program to remove ransomware from computers. If you're infected by ransomware, cybersecurity specialists might also release free decryption tools online. So be sure to check them out. If these programs and resources don't work, stop spreading the ransomware by disconnecting yourself from the network and running recovery procedures, if you've backed up your files in an external hard disk or the cloud.

Mac ransomware attacks aren't common, but they're still a big problem for your business. If you need any further help, please get in touch with us. We stay up to date on the latest Mac malware and how to protect your business from them.

Recent Posts

Technology debt slows Canadian businesses with outdated systems, quick fixes, complexity and operational delays.
By Leslie Babel July 3, 2026
Technology debt quietly increases costs, slows productivity, and creates security risks. Learn how Canadian businesses can identify and reduce it.
Checklist with Experience, Support, and Security in an office setting.
By Leslie Babel June 26, 2026
Learn how Canadian businesses can reduce operational friction, improve efficiency, and simplify technology environments through better decision-making.
Anime-style global logistics map with glowing network nodes and transportation icons on a dark blue background.
By Leslie Babel June 18, 2026
Too many vendors can increase costs, complexity, and security risks. Learn why Canadian SMBs are simplifying their technology environments.
Canadian cloud computing network on laptop with cybersecurity icons and digital world map
By Leslie Babel June 11, 2026
Before choosing cloud software, Canadian businesses should evaluate data residency, security, integrations, support, and long-term operational fit.
Anime-style MSP dashboard on laptop with IT service analytics, automation workflow icons, and digital business technology network.
By Leslie Babel June 3, 2026
Canadian businesses are rethinking their technology stack due to rising costs, security concerns, vendor sprawl, and operational complexity.
modern office scene showing an organization struggling with AI readiness
By Leslie Babel June 1, 2026
Messy data, open permissions, and a resistant culture can sink an AI rollout fast. Learn the warning signs before you invest — and what to fix first.
Anime-style onboarding banner with business handshake, digital HR icons, and modern corporate technology theme.
By Leslie Babel May 28, 2026
What happens after switching MSPs? Learn what professional services firms typically experience during the first 6 months with a new IT provider.
Office scene with woman at laptop, highlighted cyber alerts on screens, and colleagues in the background
By Leslie Babel May 27, 2026
Free AI tools, unsanctioned use, and AI agents are the top risks for SMBs right now. Learn the simple rules that actually stick — and how to build a culture around them.
Businessman interacting with a digital interface featuring hexagon technology icons.
By Leslie Babel May 21, 2026
What should a healthy IT environment actually look like? Learn the signs of stable, secure, and proactive IT for professional services firms.
Executives shaking hands over a contract in a modern boardroom with city skyline and growth chart.
By Leslie Babel May 14, 2026
Comparing MSP contracts? Learn what to evaluate beyond pricing, including security scope, onboarding, billing structure, and risk exposure.
Technology debt slows Canadian businesses with outdated systems, quick fixes, complexity and operational delays.
By Leslie Babel July 3, 2026
Technology debt quietly increases costs, slows productivity, and creates security risks. Learn how Canadian businesses can identify and reduce it.
Checklist with Experience, Support, and Security in an office setting.
By Leslie Babel June 26, 2026
Learn how Canadian businesses can reduce operational friction, improve efficiency, and simplify technology environments through better decision-making.
Anime-style global logistics map with glowing network nodes and transportation icons on a dark blue background.
By Leslie Babel June 18, 2026
Too many vendors can increase costs, complexity, and security risks. Learn why Canadian SMBs are simplifying their technology environments.