Macs have a reputation for being safe, and it is partly earned. Apple builds in strong protections, from encrypted storage to app vetting, and malware aimed at macOS is less common than on some other platforms. But "safer by design" is not the same as "safe no matter what you do."
Most Mac problems today come from people rather than exploits. A reused password, a phishing link, an app from an unofficial site, or a stolen laptop with no lock can undo a lot of good engineering. The encouraging part is that most of the fixes are settings already built into your Mac.
This guide covers 25 tips in five groups: basics, device protection, privacy controls, logins and scams, and networks and backups. Each one explains why it matters and what its limits are. Menu names shift slightly between macOS versions, so if a setting is not where described, type its name into the search box at the top of System Settings.
Start With the Basics: Updates, Passwords, and Accounts
The first five tips cost nothing and take a few minutes. They cover the everyday habits that decide whether a stranger, a thief, or a piece of malware gets an easy start.
1. Turn on automatic updates
Security updates fix flaws that are already publicly known, which makes installing them the single most valuable habit. Attackers rely on the gap between a fix being released and people getting around to it. Automation closes that gap for you.
Open System Settings, go to General, then Software Update, and click the info button beside automatic updates. Enable checking for updates, downloading them, installing macOS updates, and installing security responses and system files. That last option lets Apple push urgent protections quickly.
Do not forget apps. The App Store can update its apps automatically, and software from other sources usually has its own update setting. An outdated browser or PDF reader is as risky as an outdated operating system.
On a phone, AVO Smart Scan reviews selected settings such as the operating system version and lists suggested actions. On a Mac, the Software Update pane plays that role, so a quick monthly look is enough.
2. Use a strong password and require it after sleep
Your login password protects everything else, including the encrypted disk and saved credentials. Length beats cleverness, so a passphrase of several unrelated words is stronger and easier to remember than a short jumble of symbols. Avoid anything based on names, birthdays, or a password you use elsewhere.
A strong password does nothing if the screen stays unlocked. Go to System Settings, then Lock Screen, and set the option requiring a password after the screen saver starts or the display turns off. Choose "immediately" or a very short delay.
Also set a reasonable inactivity timer so the screen locks on its own. A laptop left open in a café for two minutes is exactly the moment thieves and curious colleagues look for. The lock shortens that window.
3. Turn off automatic login and password hints
Automatic login skips the password at startup, so anyone who powers on your Mac lands on your desktop. Under Users & Groups, set automatic login to off. Once FileVault is enabled, macOS disables automatic login for you anyway.
Password hints deserve the same attention. A hint is a clue you wrote when you were not thinking like an attacker, and it can give away more than you intended. Hide them from the login window if your version shows them.
Consider what the login screen reveals about you. Display settings that show a list of users tell strangers which accounts exist. Showing only a name and password box gives away less.
These are small changes with a practical payoff. They matter most for laptops, which are lost, stolen, and left on café tables far more often than desktops.
4. Use a standard account for daily work
The first account created on a Mac is an administrator, which means it can install software and change system settings. That power is exactly what malware wants. If you browse and open email from an admin account, anything you accidentally run inherits that authority.
A safer setup is a separate administrator account used only for installs and system changes, plus a standard account for everyday life. Create the standard account under Users & Groups. When an app needs elevated rights, macOS asks for the admin credentials, which gives you a chance to pause.
This adds a small step, and the trade-off is real. It does not stop every threat, and some people find the switching tedious. But it limits the damage from a bad click, and it is one of the oldest and most effective security habits.
5. Set up Touch ID and Apple Watch unlock sensibly
Biometrics make strong security convenient, and people are more likely to keep a strong password when they do not have to type it constantly. If your Mac has Touch ID, enroll a finger under Touch ID & Password. You can use it for unlocking, purchases, and password autofill.
An Apple Watch can also unlock your Mac and approve some prompts. It is convenient, but it depends on the watch being nearby and unlocked, so think about whether that suits your surroundings. Shared workspaces may call for the stricter option.
Biometrics do not replace the password. The Mac still asks for it after restarts and after several failed attempts. Choose a strong one, because it remains the fallback for everything.
Protect the Machine Itself
Once the basics are in place, the next group protects the hardware and the software running on it. These settings matter most when a laptop is lost or when a suspicious app finds its way onto the machine.
6. Turn on FileVault disk encryption
FileVault encrypts everything on your startup disk, so a thief who removes the drive or boots the Mac cannot simply read your files. Apple silicon Macs already encrypt storage in hardware, but FileVault ties that protection to your login password. Without it, the encryption keys are easier to reach.
Go to System Settings, then Privacy & Security, and switch FileVault on. You will be offered a recovery method, either your Apple Account or a recovery key. Store a recovery key somewhere safe and separate, such as a password manager, because losing both the password and the key can mean losing your data.
The performance impact on modern Macs is small. The main cost is responsibility, since recovery becomes your problem. For any laptop that leaves the house, that is a fair trade.
7. Enable Find My Mac and Activation Lock
Find My Mac helps you locate a lost machine, lock it, or erase it remotely. Turn it on under your Apple Account settings, in the iCloud section. Make sure Location Services is enabled, since the feature depends on it.
On Macs with the right hardware, this also enables Activation Lock, which makes a stolen device far less useful. Without your Apple Account credentials, a thief cannot easily reactivate the machine after erasing it. That reduces the resale value of a stolen Mac, which discourages theft.
There are limits. A Mac must be powered on and connected to report its location, and an erased Mac can no longer be tracked. Treat the feature as a recovery aid and a deterrent, not a guarantee.
8. Turn on the built-in firewall
The macOS firewall controls which apps can accept incoming connections from the network. It is off by default on many Macs, because the system already avoids running open services. Still, turning it on adds a useful layer, particularly on networks you do not control.
Find it in System Settings under Network, then Firewall. Enable it, and open its options to consider stealth mode, which stops your Mac from responding to probing requests. You can also choose whether signed apps are allowed to receive connections automatically.
Be realistic about what it does. It controls incoming traffic and does not stop a malicious app from making outgoing connections. Think of it as a sensible door lock, not a full security system.
9. Keep Gatekeeper on and download from trusted sources
Gatekeeper is the check macOS runs before opening software from outside the App Store. It verifies that the developer is identified and that Apple has scanned the app, a process called notarization. Under Privacy & Security, keep the setting on the App Store or on the App Store and identified developers.
The biggest practical risk is where you download from. Cracked software, fake "updaters," and ad-driven download sites are the usual delivery routes for Mac malware. If an app requires you to bypass a warning to open it, treat that as a strong reason to stop.
Recent macOS versions make overriding a block deliberately awkward, sending you through Privacy & Security to choose "Open Anyway." That friction is intentional. Use it only for software you have verified yourself, such as an open-source tool downloaded from its official site.
10. Review what runs in the background
Malware and unwanted software often survive by launching automatically. Open System Settings, then General, then Login Items & Extensions. Review what starts at login and what is allowed to run in the background.
Switch off anything you do not recognize or no longer use. If a name is unfamiliar, search for it before deciding, since some helpers belong to legitimate apps. Pay attention to items that appeared recently without an obvious reason.
Activity Monitor gives a live view of processes, and it is worth opening once to see what normal looks like on your machine. A process constantly using heavy processor time without a clear cause deserves a look. macOS also runs built-in malware checks in the background, which update automatically, so keeping updates on keeps those protections current.
Control What Apps, Sites, and Services Can See
Security is also about limiting exposure. Every permission an app holds is a door left slightly open, so the next five tips focus on closing the ones you do not need.
11. Audit Privacy & Security permissions
macOS asks before an app uses the camera, microphone, location, contacts, or your files, and it remembers your answers. Over the years, the list grows. Open System Settings, then Privacy & Security, and walk through each category.
Give particular attention to the powerful ones: Full Disk Access, Accessibility, Input Monitoring, and Screen Recording. Those can read files, watch keystrokes, or capture the screen, so only apps you rely on and trust should hold them. A video-call app needs the camera, but a random utility does not need to record your screen.
Remove anything unnecessary. If an app breaks, it will ask again, and you can grant the permission then with a clearer reason. It is easier to grant access later than to notice abuse afterward.
12. Turn off sharing services you do not use
Sharing services let other devices reach your Mac, which is useful at home and risky in public. Open System Settings, then General, then Sharing, and check what is enabled. File Sharing, Screen Sharing, Remote Login, and Remote Management are the ones to question.
If you do not use a service, switch it off. Each one is a potential entry point, and a forgotten Remote Login setting is exactly what an attacker hopes to find. Leaving them off costs nothing when you are not using them.
Check AirDrop too. Setting it to Contacts Only, or Receiving Off when you are not using it, prevents strangers from sending you unwanted files in crowded places. It is a small setting that avoids an unpleasant surprise.
13. Harden Safari's privacy settings
Safari includes strong privacy features, and a few are worth confirming. In its settings, keep cross-site tracking prevention on, and enable the option to hide your IP address from known trackers. Turn on the warning for fraudulent websites, which flags many phishing pages.
Review site permissions for the camera, microphone, and location, and remove anything you do not remember allowing. Also check which websites can send notifications, since those permissions are a common route for spam and scam prompts.
Use separate profiles or private windows to keep work, personal, and shopping activity apart. This limits how much any one site can connect. Other browsers have similar options, so apply the same ideas whichever one you use.
14. Keep browser extensions to a minimum
Extensions can read the pages you visit, and some can read everything you type. A useful extension today can be sold to a new owner tomorrow and updated to collect data. This has happened repeatedly with popular add-ons.
Open your browser's extension list and remove anything you have not used recently. For those you keep, check what access they request, and prefer ones limited to specific sites. If an extension wants access to all websites for a simple task, think twice.
Install only from official stores, and read recent reviews for signs of a change in behavior. Fewer extensions also means fewer things to update and fewer ways for a page to misbehave. A lean setup is easier to trust.
15. Trim system-level tracking and data sharing
Beyond individual apps, macOS has settings that share information with Apple and advertisers. In Privacy & Security, review Analytics & Improvements and Apple Advertising, and switch off what you do not want to share. The exact options vary by version.
Location Services deserves a review too. You can decide app by app who may see your location, and system services have their own list. Turn off anything that has no clear benefit for you.
These settings are about preference more than protection. Apple's data practices are documented, but sharing less is a reasonable default if you do not need the feature. Revisit them after major macOS updates, because new options sometimes arrive enabled.
Secure Your Logins and Spot Scams
Attackers rarely break into a Mac if they can persuade its owner to open the door. The next five tips protect the accounts behind the machine and help you spot the tricks used to get at them.
16. Use a password manager and adopt passkeys
Reusing passwords is the reason one small breach becomes many large ones. A password manager creates long, unique passwords and fills them in for you, so you remember one strong passphrase and nothing else. macOS includes the Passwords app, and third-party managers offer more features.
Passkeys go a step further. They replace the password with a cryptographic key tied to the real website, which makes phishing much harder. Where a site offers passkeys, they are usually the strongest choice.
Start by moving your email, banking, and Apple Account to unique passwords. Work outward from there instead of trying to fix everything at once. Progress beats perfection, and each unique password closes one door.
17. Turn on two-factor authentication everywhere
A password alone is one guess away from failing. Two-factor authentication adds a second proof, so a stolen password is not enough. Turn it on for your Apple Account first, since it controls Find My, iCloud, and device recovery.
Prefer an authenticator app or a security key to text messages where you have the choice. Texts can be intercepted through SIM-swap fraud, in which a criminal persuades a carrier to move your number. Apps and keys avoid that weakness.
Save backup codes somewhere safe, such as inside your password manager. A lost phone should not lock you out of your own accounts. Treat those codes as valuable, because they bypass the second step.
18. Check whether your email has appeared in a breach
Many people have appeared in a data breach without knowing. An AVO Email Breach Scan is one example of a tool that checks known breach records for your address and alerts you to matches. Its store listing notes that results depend on the records available and the timing of checks.
That caveat is important. A clean result means nothing turned up in the data the service can see, and it does not prove you have never been exposed. A match is a clear signal to change the affected password everywhere it was reused.
A note on availability: the store listings I reviewed for AVO's app cover iPhone and Android, so check the feature pages for Mac support before relying on it. Mac users can still run these checks on their phone, and free breach lookup services exist as alternatives. The habit matters more than the specific tool.
19. Verify links before you click
Phishing remains the most reliable way to steal a login, and it works identically on a Mac. Messages create urgency, imitate familiar brands, and point to lookalike addresses. Hovering over a link in a browser or mail app shows the real destination in the status bar.
Read the domain carefully, since attackers swap letters, add extra words, or use unusual endings. Be cautious with shortened links, which hide where they lead. When a message claims to be from your bank or Apple, go to the official site or app directly instead of following the link.
A checker adds a second opinion. AVO Link Checker tests an address against known threats before you open it, which helps with messages that push you to act quickly. New phishing sites can appear and disappear within hours, so a clean result is not proof of safety.
20. Be careful with QR codes
Macs do not scan QR codes as often as phones, but the codes still reach you through emails, PDFs, and posters, and you usually scan them with your phone. Nobody can read a destination from the pattern, which is why criminals use them. Some paste fake codes over real ones, and others send them in phishing emails to move you onto a phone.
An AVO QR Scanner shows what a code contains before you open it, so you can spot an odd address first. It does not certify a destination as safe, but the pause gives you a chance to notice something wrong.
If a code leads to a login page, close it and visit the official site directly. Never enter a Mac password, Apple Account credential, or payment detail after arriving from an unexpected code. The safest option is to ignore codes you did not expect.
Lock Down Networks, Family Devices, and Backups
The final group deals with the connections your Mac uses, the people who share it, and the safety net for when something goes wrong.
21. Treat public Wi-Fi with suspicion
Cafés, airports, and hotels offer networks that anyone can join, including people with bad intentions. Attackers can set up fake hotspots with familiar names, and on poorly protected networks they may be able to observe or tamper with traffic. Most websites use HTTPS, which helps, but the network is still not something to trust blindly.
Prefer your phone's hotspot when working with sensitive material. Turn off automatic joining of open networks, and forget networks you no longer use. Recent macOS versions can use a private Wi-Fi address, which limits tracking across networks, so check the network details when you connect.
A network check can flag risks before you commit. AVO Wifi Security is designed to verify whether a network looks safe and to flag unsecured connections, according to its store description. It cannot prove that a hotspot is trustworthy, but it can tell you when to be careful.
22. Use a VPN when you cannot avoid a shared network
A VPN, or virtual private network, encrypts the connection between your device and a server, so others on the local network see much less of what you do. Bundled toolkits such as AVO Security include one, and AVO VPN is the feature name. Its Google Play listing states that browsing history and personal data are not logged, which is worth reading alongside the full privacy policy and any independent audit.
Know what a VPN does not do. It does not stop phishing, does not protect a password typed into a fake page, and does not make you anonymous. It moves trust from the local network to the VPN provider, so choose a provider carefully.
On a Mac, a VPN is most useful when you work on networks you do not control. Test speed and reliability before depending on it, and remember that some services block known VPN servers. Free VPNs deserve extra scrutiny, since running servers costs money and someone has to pay.
23. Add DNS-level web filtering
Every website visit begins with a lookup that turns a name into an address. Filtering at that step can refuse to look up domains known to host malware, phishing, or trackers, so the page never loads. It works across browsers and many apps, which is a benefit over a single extension.
AVO Web Shield uses this approach by connecting through a VPN and applying DNS filtering profiles for unsafe domains, advertising, tracking, or family browsing, according to its listings. The same listings note that coverage varies by profile and does not block every unwanted site.
Expect trade-offs. Brand-new malicious domains may not be on any list yet, and aggressive profiles can occasionally break legitimate sites. Most systems also allow one active VPN configuration at a time, so a filtering VPN may conflict with another. Treat filtering as a net under your judgment, not a replacement for it.
24. Set up parental controls on shared Macs
If children use the family Mac, macOS has controls built in. Create a separate standard account for each child, and use Screen Time to set limits and restrictions. Content & Privacy settings let you limit apps, restrict explicit content, and control purchases.
Family Sharing makes this easier by letting you manage settings remotely from your own device. Turn on the option to ask for approval before downloading new apps. This stops unwanted software from appearing without a conversation first.
Browsing filters can add another layer. AVO Parental Controls offers a family browsing profile within its filtering approach, and its listing is clear that filtering does not block every unwanted site. Technology works best alongside honest conversation about what children might encounter. Loosen limits gradually as trust grows, because overly strict setups invite workarounds.
25. Back up with Time Machine and test the restore
Backups are the last line of defense, and they cover risks that no setting can prevent. Ransomware, hardware failure, theft, and simple mistakes all become manageable if you have a recent copy. Time Machine is built in and works with an external drive or a compatible network location.
When you choose a backup disk, tick the option to encrypt it. An unencrypted backup undoes the protection FileVault gives your main drive. Keep the disk somewhere other than where the Mac lives, so a burglary or a fire does not take both.
A common guideline is the 3-2-1 approach: three copies, on two kinds of storage, with one off-site. Cloud backup can serve as the off-site copy. Finally, test a restore now and then by recovering a single file, since a backup you have never tried is a hope, not a plan.
Conclusion
A secure Mac comes from many small, sensible choices rather than one clever tool. Keep software updated, lock the screen, encrypt the disk, use unique passwords with a second step, limit what apps and sharing services can reach, verify links before clicking, and keep an encrypted backup. Most of this is already built into macOS and costs nothing.
The practical takeaway is to pick five tips from this list and apply them today, then add a few more each week. Extra tools can help at the edges, but they support good habits and do not replace them. A quiet, well-maintained Mac beats a heavily protected one that nobody looks after.
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