Mac security: Built-in and bonus safeguards

Apple devices have long been lauded for their strong security, but in recent years, macOS-targeted malware has grown significantly, including a rise in infostealer malware such as Atomic macOS Stealer (AMOS), which is designed to steal passwords, browser data, cryptocurrency wallets, and other sensitive information.

Many of these threats rely on social engineering tactics, such as fake software downloads, phishing pages, or malicious ads, to bypass built-in protections. Successful attacks can lead to account takeovers, financial fraud, data theft, or identity theft.

But while Macs are becoming a more attractive target for cybercriminals, that doesn’t mean they’re unsafe to use. Understanding the risks and following good security practices can go a long way toward keeping your device and personal information secure.

How secure are Macs?

Macs are generally considered highly secure thanks to Apple’s tightly integrated hardware and software ecosystem. Because Apple designs the hardware, develops macOS, and controls key parts of app distribution, it can enforce stricter security standards and deliver updates more consistently than many other platforms.

This level of control helps support built-in protections such as app sandboxing, which isolates apps to limit access to the rest of the system, and Gatekeeper, which helps prevent untrusted or unsigned software from running. Apple also reviews apps distributed through the Mac App Store to screen for malware and other security threats before they reach users.

At the same time, growing macOS popularity has made Macs a more attractive target for phishing campaigns, infostealer malware, malicious browser extensions, and other evolving threats.

Here’s a closer look at the specific virus prevention protections and other built-in security features that have traditionally made Macs such a challenging target for hackers and other cybercriminals:

Hardware-based security

Mac hardware forms the bedrock upon which all the various layers of system security are built. By combining dedicated security hardware with secure startup protections, Apple helps defend macOS and user data against low-level tampering and unauthorized access.

Mac hardware security features include:

• Apple Silicon and T2 security chips: Dedicated security hardware that helps protect sensitive data, supports Secure Boot, and prevents certain types of system tampering. These chips also help secure features like Touch ID, encrypted storage, and password protection.
• Secure Boot: A startup security feature that checks the integrity of macOS during launch to help ensure only trusted, untampered software is loaded.

System-level protections

System-level features act as a safety net, designed to maintain system integrity and reduce the risk of unauthorized changes or malware persistence.

Mac system security features include:

• System Integrity Protection (SIP): A safeguard that prevents critical system files and processes from being modified, even by users with administrative privileges.
• Rapid security response: A mechanism that allows Apple to quickly deliver important security fixes separately from full macOS updates, helping patch vulnerabilities faster.

App and malware protection

Various layers of macOS app and malware protection scan for threats and verify app integrity, reducing the risk of malicious software compromising your device.

Mac app and malware security features include:

• XProtect: Apple’s built-in malware detection system scans for known malware types and can block or remove certain threats automatically.
• Gatekeeper: A feature that checks whether downloaded apps come from identified developers and whether the software has been altered or tampered with.

Data protection

Data protection features help ensure that your personal files, passwords, and sensitive information remain secure, even if your device is lost or stolen.

Mac data protection features include:

• FileVault: A full-disk encryption feature that requires your login credentials to access, keeping data unreadable if your Mac is lost or stolen.
• Keychain: A secure password manager built into macOS that stores login credentials, Wi-Fi passwords, and other sensitive information in an encrypted format.

Identity and device protection

Identity and device safeguards are designed to control access and defend against targeted threats. By combining biometric authentication with advanced security features, Macs provide secure and convenient ways to help protect both user identities and devices.

• Biometric ID: Biometric authentication lets you securely unlock your device, approve purchases, and access sensitive settings using your fingerprint or face.
• Lockdown mode: An optional high-security setting that restricts certain apps and connections to reduce exposure to advanced threats.

Mac vs. Windows security

The differences between Mac and Windows security largely come down to factors related to market share, usage environments, and operating system design. Windows devices tend to be more heavily targeted because of their larger market share and widespread business use. At the same time, Apple’s tightly controlled ecosystem helps reduce certain risks on Macs by limiting hardware variations and enforcing stricter software controls.

However, both platforms remain vulnerable to modern threats, making strong security practices important regardless of the operating system.

Here’s a breakdown of how Macs and Windows PCs compare:

User base and attack incentives

Windows systems are heavily used in corporate environments and often store sensitive information, including financial and operational data. Because of this, cybercriminals more frequently target Windows users and enterprise networks.

Macs are more commonly associated with creative professionals and consumers, although their use in business settings continues to grow. Historically, the smaller macOS user base made it a less attractive target for large-scale malware campaigns, though that trend has been changing.

Device popularity

Windows dominates the desktop operating system market, with Windows PCs accounting for 68% of the global user base, giving attackers a much larger pool of potential targets. As a result, many malware campaigns are designed primarily to target Windows systems specifically.

However, increased Mac adoption has led to a noticeable rise in macOS-focused threats, including phishing attacks, infostealers, malicious browser extensions, and fake software downloads.

System restrictions and app controls

macOS generally takes a more restrictive approach to software execution and system access. Features like Gatekeeper, app sandboxing, and stricter permission controls help limit what applications can do without user approval.

Windows traditionally prioritizes broader software compatibility and system flexibility, which can create a larger attack surface in some cases. That said, Microsoft has significantly strengthened Windows security in recent years with features such as Microsoft Defender, SmartScreen, virtualization-based security, and improved ransomware protection.

System architecture

macOS is built on a Unix-based architecture that emphasizes user permissions, process isolation, and separation between system and user functions. These design choices can help reduce the impact of certain malware infections.

Windows uses the NT kernel, which supports a wide range of hardware, enterprise tools, and legacy software. While this flexibility is valuable, supporting such a broad ecosystem can also introduce additional exploitable vulnerabilities.

How to secure your Mac

Keeping your Mac secure involves more than relying on Apple’s built-in protections alone. While macOS includes strong security features by default, good security habits and additional safeguards can help reduce your risk even further.

Here are some practical steps you can take to improve your Mac’s security, protect your privacy, and strengthen your device against malware, hackers, and  scam-yourself attacks.

Create account and review security settings

If multiple people use the same Mac at home, school, or work, create separate user accounts with appropriate permission levels. This helps keep files, settings, and personal data isolated between users while reducing the risk of unauthorized changes to the system.

The primary account owner — or anyone who needs full administrative access — should use a strong password and avoid staying logged in when the device is unattended. Enabling automatic screen lock or sleep settings can also help protect sensitive data if you step away from your Mac.

Each user should have their own unique username and password rather than sharing accounts. Separate accounts make it easier to maintain privacy, limit accidental system changes, and monitor activity on shared devices in workplaces or educational environments.

Manage privacy and permission controls

Regularly review your Mac’s Privacy & Security settings to see which apps have access to sensitive features like your location, camera, microphone, files, or contacts. Over time, apps may gain additional permissions, so removing access for apps you no longer use can help reduce tracking, unnecessary data collection, and other privacy risks.

It’s also a good idea to disable features such as Bluetooth, AirDrop, and Siri if you aren’t actively using them, especially on public or shared networks. Limiting unnecessary wireless connections and background services can reduce your device’s visibility and lower the risk of unwanted access attempts.

Secure network and internet connections

Be cautious when connecting your Mac to public Wi-Fi networks, especially in places like coffee shops, airports, or hotels. Disabling auto-join for open networks can help prevent your device from automatically connecting to potentially malicious hotspots. In some cases, attackers create “evil twin” networks that imitate legitimate Wi-Fi names to intercept traffic or collect sensitive information.

You can also strengthen your online privacy by enabling Safari’s built-in protections, such as Prevent Cross-Site Tracking, which helps limit tracking by advertisers and third-party websites. Using a reputable ad blocker can further reduce exposure to malicious ads and scam websites.

For additional protection, enable your Mac’s built-in firewall to help block unauthorized inbound network connections. When using public Wi-Fi, consider using a trusted VPN to encrypt your internet traffic and reduce the risk of interception on unsecured networks.

Verify app and download safety

Whenever possible, only download apps from the Mac App Store. Otherwise, install software directly from trusted developers. And before installing anything from anywhere, take a moment to review what the app does, the permissions it requests, and feedback from other users.

While Apple reviews App Store apps and enforces security requirements, no review process is perfect. Malicious or overly intrusive apps can still occasionally make it onto the platform, especially if they request excessive permissions, contain hidden vulnerabilities, or engage in aggressive data collection.

Sticking to trusted sources significantly reduces the risk of malware infections and fake software downloads. To further verify an app’s legitimacy, check the developer’s reputation, read recent reviews, and avoid apps that seem suspicious, poorly maintained, or unrelated to their stated purpose.

Strengthen passwords and enable authentication controls

Use strong, unique passwords for every account instead of reusing the same credentials across multiple sites. A password manager such as iCloud Keychain or other reputable password management tools can help generate and securely store complex passwords, making them easier to manage.

You should also enable two-factor authentication (2FA) whenever possible. Authentication apps and physical security keys generally provide stronger protection than SMS-based verification, which can be vulnerable to attacks like SIM swapping, where cybercriminals hijack your phone number to intercept verification codes and gain access to your accounts.

Adding multiple layers of authentication can significantly reduce the risk of account takeovers, even if your password is exposed in a data breach or phishing attack.

Protect data and prepare for recovery

As soon as you set up a new Mac, enable Find My Mac so you can locate, lock, or remotely erase the device if it’s lost or stolen. This can help protect sensitive information from unauthorized access.

For additional protection, turn on FileVault, Apple’s built-in full-disk encryption feature. FileVault encrypts your startup disk — including files, system data, and temporary files — so the contents can’t be accessed without your login credentials or recovery key.

It’s also important to regularly back up your data. Using Time Machine, a cloud storage service, or both can help you recover files if your Mac is lost, damaged, infected with malware, or affected by accidental deletion or hardware failure.

Maintain updates and system health

Keep macOS and your apps up to date to ensure you receive the latest security patches and bug fixes. Cybercriminals often target known vulnerabilities that have already been patched in newer versions, so delaying updates can increase your exposure to attacks.

It’s also a good idea to periodically clear your browser cache, cookies, and unused files to help improve performance and reduce the amount of tracking data stored on your device. Removing old browser data may also help resolve website loading or login issues.

If your Mac still feels slow after updating and basic cleanup, deeper system clutter may be to blame. Subscribe to Norton Utilities Ultimate for automatic app, browsing data, and media cleanup.

Use third-party antivirus and maintenance tools

Built-in Apple security features are a great foundation, but third-party security and maintenance tools can provide additional layers of protection and system management.

Depending on the product, these tools may offer features such as real-time malware scanning, phishing protection, ransomware detection, VPN services, or system cleanup utilities.

Some of the best antivirus software and security tools for Mac to consider include:

• Norton 360 Deluxe
• Bitdefender
• McAfee
• Malwarebytes
• TotalAV

When choosing a security tool, look for products with strong independent test results, transparent privacy practices, minimal system impact, and features that match your needs and price point, rather than simply the longest feature list.

Do Macs need antivirus software?

While Macs may not absolutely need antivirus software to function safely for everyday use, they can certainly benefit from it. Integrated features like XProtect, Gatekeeper, and app sandboxing help detect known malware, verify downloaded apps, and limit malicious activity — providing a strong baseline layer of protection.

But as macOS-targeted threats, phishing attacks, malicious browser extensions, and infostealer malware have become more common, third-party macOS antivirus tools are increasingly important for users looking to complement Apple features with real-time threat monitoring, sophisticated behavioral analysis, scam detection tools, and ransomware protection.

Many security suites also include additional tools such as VPNs, password managers, cloud backup, identity monitoring, or system cleanup features. Whether these extras are worthwhile depends on your browsing habits, risk level, and how much built-in protection you want beyond Apple’s default safeguards.

Signs your Mac may be compromised

Malware and other threats can sometimes operate quietly in the background, but infected or compromised Macs often begin showing warning signs over time. Some common signs that your MacBook or iMac is compromised include:

• Performance issues: Your Mac suddenly becomes unusually slow, the battery drains faster than normal, apps freeze, or the fans run constantly even during light use.
• Ads, pop-ups, and redirects: You see persistent pop-ups, fake security alerts, or your browser redirects you to websites you didn’t intend to visit.
• Unusual network activity: Your Mac uses large amounts of data or shows unexplained internet activity when you’re not actively downloading, syncing, or streaming.
• Unknown apps or icons: New applications, login items, browser extensions, or menu bar icons appear that you don’t remember installing.
• System crashes or changed settings: Frequent crashes, disabled security features, altered browser settings, or unexpected permission requests can all be warning signs.
• Unexpected camera or microphone activity: If your camera indicator light or microphone access icon activates unexpectedly, it may suggest an app is accessing those features without your knowledge.

It’s important to remember that these symptoms don’t always mean your Mac has been hacked. Performance issues, software bugs, or legitimate background processes can sometimes cause similar behavior. However, if multiple warning signs appear together, it’s a good idea to investigate further and run a security scan.

Maximize Mac Security with Norton

Built-in Mac protections are a strong start, but modern threats often require more advanced defenses. Norton 360 for Mac adds AI-powered, real-time protection to help block emerging malware, scams, and suspicious activity before they can put your device or data at risk.

It also includes a secure VPN for online privacy, a Password Manager to help protect your accounts, and additional security features designed to keep your digital life safer. Browse, bank, and shop with greater confidence knowing your Mac has protection that goes beyond the basics.

FAQs

What is endpoint security for Mac?

Endpoint security for Mac refers to tools and policies designed to protect Mac devices from cyber threats like malware, phishing, ransomware, and unauthorized access. It combines features such as antivirus protection, threat monitoring, firewalls, and device management to help secure individual endpoints connected to a network, especially in business or remote work environments.

Is the macOS security warning real?

It depends on where the warning appears. Legitimate macOS security alerts typically appear as system notifications or within System Settings, not as flashing browser pop-ups or web pages claiming your Mac is infected.

Many fake “Apple security warnings” are actually scam advertisements designed to pressure users into calling fake support numbers, downloading unwanted software, or granting remote access to their devices. If you encounter one, close the browser tab or force quit the browser instead of interacting with the message.

Should I be worried if Apple says my password is compromised?

Yes, Apple may alert you through iCloud Keychain if one of your saved passwords appears in a known data breach or is considered weak or reused. This doesn’t necessarily mean your account has already been hacked, but it does mean the password could be at increased risk.

If you receive this warning, change the affected password as soon as possible and avoid reusing it across other accounts. Enabling two-factor authentication (2FA) can also provide additional protection.

Does Apple notify you if you are being hacked?

Apple may notify you about suspicious activity related to your Apple ID, such as sign-in attempts from an unfamiliar device or location. However, Apple will never call you unexpectedly, display browser pop-ups demanding payment, or ask for remote access to your Mac to “fix” a security issue. These are all classic tactics used by scammers and hackers trying to impersonate Apple.