Oct 03, 2019 Windows was designed to be user friendly, and this convenience directly contributes to its success. The drawback is that the more convenient something is, the more potential there might be for things to go wrong. However, there are steps you can take to keep your computer running smoothly and fast throughout its lifespan. Software to keep mac running fast. The following suggestions generally apply to all types of Mac devices, whether it is a MacBook Pro, iMAc, Mac Mini or MacBook Air. 1) Delete Unused Apps If you visit your Applications folder, you will certainly find at least few programs which are no longer needed or used. Feb 17, 2016 How to caffeinate your Mac with Terminal. Installing fancy software from the Mac App Store isn’t required; if you’re comfortable enough, you can just launch the Terminal app on your Mac and run a simple command. Believe it or not, the Caffeine app is cleverly named after a command that already exists in your Mac’s command line interface. May 31, 2013 How to keep your Mac running in tip-top shape. Therefore, the long-standing theory that security software is pointless for the Mac platform has a few holes in it.
Changing the Security preferences for Mac OS X Snow Leopard is easy. You have options to use a firewall, enable the FileVault, and more. To access security preferences, open the System Preferences by clicking the gear icon on the dock and then choose the Security pane.
OS X Security: Under the Hood Features That Protect Your Mac. Posted on February 22nd, 2016 by Kirk McElhearn. When you use your Mac for work or play, you see windows and menus for the apps you use, for settings, and more. But these user-facing features are just a small part of what powers an operating system.
Settings here are divided into three tabs:
Oct 23, 2014 Protect your Mac with multiple layers of security and increase privacy with our two-way firewall and Mac anti-virus for OS X Yosemite — get Mac Internet Security X8 today! About Kirk McElhearn Kirk McElhearn writes about Macs, iPods, iTunes, books, music and more on his blog Kirkville.
As of OS X 10.8 (Mountain Lion) Apple changed the default security settings to only allow installation of apps from the Mac App Store and identified developers.
Oct 03, 2016 Safely Install Non-Mac App Store Apps On Your Mac OS X Tips Cult of Mac I don't know if there has been a dangerous app released for the Mac recently, but I'd rather keep that extra step active. Macs are much safer than PCs, but a few years ago there was something called MacDefender that infected Macs and caused us to feel a little less smug.
Starting with OS X Mountain Lion, Apple introduced Gatekeeper so users couldn’t easily install downloaded apps from outside the Mac App Store. When someone downloads an app from somewhere other than the Mac App Store they will get one of a few warning messages depending on what security settings they’ve set in System Preferences.
General: To add an extra layer of password security to a laptop (or a Mac in a public area), select the Require Password After Sleep or Screen Saver Begins check box. Snow Leopard then requires that you enter your login password before the system returns from a sleep state or exits a screen saver. Click the pop-up delay menu to specify when the password requirement will kick in (it’s immediate by default).
Admin-level users can set the global security features in the For All Accounts on This Computer section. You can choose to disable the automatic login feature, force Mac OS X to require a login password each time that a System Preference pane is opened, automatically log off any user after a certain amount of inactivity, or use a secure (encrypted) virtual memory on your hard drive. You can also mark the Disable Location Services check box to turn off the Location feature, preventing applications from using information based on your Mac’s current location.
If you don’t need the Remote on a regular basis, click the Disable Remote Control Infrared Receiver check box to select it. (But don’t forget to turn your IR receiver back on for your next movie night!)
FileVault: These controls allow you to set the master password for FileVault encryption within the current user’s Home folder, which makes it virtually impossible for others to access those files. Only an admin-level user can set the master password. After the master password is set, you can click the Turn On FileVault button to enable FileVault encryption for the user who’s currently logged in; the user’s Login password becomes his FileVault password as well.
Firewall: Mac OS X includes a built-in firewall, which you can enable from this pane.
To turn the firewall off entirely, simply click the Stop button. Any Mac hooked up to a network or the Internet should have the system firewall turned on.(The only exception is if you’re using a network that you know to be secure and your access to the Internet is through a router or sharing device with its own built-in firewall.)
When the firewall is enabled, click the Advanced button to set firewall options.
To turn the firewall on with only Mac OS X application exclusions, click Block All Incoming Connections.
To turn the firewall on with exclusions, click Automatically Allow Signed Software to Receive Incoming Connections. (This is the correct option for just about every Mac owner.) Any connection to a service (such as Web Sharing) or an application (such as iChat) that isn’t listed is blocked, but you can enable access for third-party applications as needed.
To add a third-party application to the Allowed list, click the Advanced button at the bottom of the Firewall pane; then click the button with the plus sign. Navigate to the application that needs to communicate with the outside world. Click the application to select it and then click Add.
To delete an application from the list, select it and click the button with the minus sign. Remember, you don’t have to add any of the applications provided by Apple with Snow Leopard, such as Apple Mail, iChat, and Safari; only third-party applications that you install yourself need a firewall rule.
You can edit the rule for a specific service or application by clicking the rule at the right side of the entry. By default, the rule reads Allow Incoming Connections (including both your local network and the Internet); however, when you click the rule, you can also choose Block Incoming Connections to temporarily deny access to that application.
If you suddenly can’t connect to other computers or share files that you originally could share, review the rules that you’ve enabled from this pane.
The safest place to get apps for your Mac is the App Store. Apple reviews each app in the App Store before it’s accepted and signs it to ensure that it hasn’t been tampered with or altered. If there’s ever a problem with an app, Apple can quickly remove it from the store.
If you download and install apps from the internet or directly from a developer, macOS continues to protect your Mac. When you install Mac apps, plug-ins, and installer packages from outside the App Store, macOS checks the Developer ID signature to verify that the software is from an identified developer and that it has not been altered. By default, macOS Catalina also requires software to be notarized, so you can be confident that the software you run on your Mac doesn't contain known malware. Before opening downloaded software for the first time, macOS requests your approval to make sure you aren’t misled into running software you didn’t expect.
Running software that hasn’t been signed and notarized may expose your computer and personal information to malware that can harm your Mac or compromise your privacy.
View the app security settings on your Mac
By default, the security and privacy preferences of your Mac are set to allow apps from the App Store and identified developers. For additional security, you can chose to allow only apps from the App Store.
In System Preferences, click Security & Privacy, then click General. Click the lock and enter your password to make changes. Select App Store under the header “Allow apps downloaded from.”
Open a developer-signed or notarized app
If your Mac is set to allow apps from the App Store and identified developers, the first time that you launch a new app, your Mac asks if you’re sure you want to open it.
An app that has been notarized by Apple indicates that Apple checked it for malicious software and none was detected:
Prior to macOS Catalina, opening an app that hasn't been notarized shows a yellow warning icon and asks if you're sure you want to open it:
If you see a warning message and can’t install an app
If you have set your Mac to allow apps only from the App Store and you try to install an app from elsewhere, your Mac will say that the app can't be opened because it was not downloaded from the App Store.*
If your Mac is set to allow apps from the App Store and identified developers, and you try to install an app that isn’t signed by an identified developer or—in macOS Catalina—notarized by Apple, you also see a warning that the app cannot be opened.
If you see this warning, it means that the app was not notarized, and Apple could not scan the app for known malicious software.
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You may want to look for an updated version of the app in the App Store or look for an alternative app.
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If macOS detects a malicious app
If macOS detects that an app has malicious content, it will notify you when you try to open it and ask you to move it to the Trash.
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How to open an app that hasn’t been notarized or is from an unidentified developer
Running software that hasn’t been signed and notarized may expose your computer and personal information to malware that can harm your Mac or compromise your privacy. If you’re certain that an app you want to install is from a trustworthy source and hasn’t been tampered with, you can temporarily override your Mac security settings to open it.
In macOS Catalina and macOS Mojave, when an app fails to install because it hasn’t been notarized or is from an unidentified developer, it will appear in System Preferences > Security & Privacy, under the General tab. Click Open Anyway to confirm your intent to open or install the app.
The warning prompt reappears, and you can click Open.*
The app is now saved as an exception to your security settings, and you can open it in the future by double-clicking it, just as you can any authorized app.
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*If you're prompted to open Finder: control-click the app in Finder, choose Open from the menu, and then click Open in the dialog that appears. Enter your admin name and password to open the app.