Kyle Kucharski/ZDNETMacOS is a solid operating system. But no matter how secure an operating system is, it’s vulnerable if it’s connected to a network. As for privacy, if you get online, your privacy is at stake, so never assume you’re safe just because you’re using Apple’s OS. Also: I’m switching to the MacBook Air M4 from my Windows laptop – and you should too at this priceYou can always take steps to improve the chances that your privacy won’t be infringed upon. What are those steps? Let’s jump in. 1. Use a VPN A VPN is always a good idea. Why? A VPN not only anonymizes your IP address (so it’s much harder to track you), but it also encrypts your traffic. Individually, those things can help. Together, they’re a powerful weapon against those who would disrupt your privacy. Also: The best VPN for Mac: Expert tested and reviewedThere are plenty of VPNs you can use (such as Proton VPN or Nord VPN), but it’s important to use one that integrates with the operating system so all your outgoing traffic is anonymized and encrypted. If you use only a browser extension, only the traffic leaving your web browser is altered. To get the most security and the fastest speeds, use a paid option. Most free VPNs slow down your network traffic, which negatively impacts your browser’s speed.  2. Use strong passwords This should go without saying, but strong passwords are the easiest method of protecting your accounts (starting with your MacOS user account). If you use weak passwords, someone could break into your desktop and wreak havoc on your privacy. Also: The best password manager for MacYou should also use a password manager (such as Bitwarden). Not only do password managers secure your login credentials, but they also include random password generators capable of creating very strong passwords. If your MacOS account is secured with a weak password, change it immediately in System Settings > Login Password.  3. Use encrypted storage Your MacOS drive is most likely encrypted, which protects you if someone steals your computer. With the storage encrypted, they’ll have a harder time accessing your data. But that doesn’t mean you can’t benefit from using encryption tools. Also: The best cloud storage services of 2025: Expert testedOut of the box, your MacOS machine uses FileVault — enabled by default — to secure the data on your disk. However, you might want to take this a step further by encrypting specific folders in your home directory to give them an extra layer of protection. You can use tools like VeraCrypt (available for free), which feature drag-and-drop AES-256 encryption for files and folders and easy sharing with Windows. More