Questions tagged [security]

If your question pertains to a specific protocol, e.g., ssh or ssl (https), please use that tag instead. This is for general security of hardware, information, software topics where another tag isn’t presumed. iPhone security should use iPhone or iOS tag.

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How can I secure my mac when downloading a file?

I am a developer & ASO specialist. As you guess, I have different customers. I am downloading 5-10 files per day from my customers. I learned that it is possible to hack MacOS via mp4, apk files, ...
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Fishy value "GJThinkPad" in terminal command prompt [duplicate]

I've tried printenv, whoami, and uname to see if the "GJThinkPad" string is located in any of them. It is not. I've also checked to see if there is a ~/.bash_profile file which might have ...
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How-To update HomePod firmware without direct connection to the internet?

The Homepod has no connection to the internet, however my iPhone has a 5G internet connection. How do I update the HomePod via iPhone?
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Exporting ALL keychain data

An authentication screwup was threatening to delete all of my encrypted data.  I eventually got around it, but on the way, I attempted sudo security dump-keychain -d (keychain) > (file) so that I ...
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How do I run iOS apps on macOS with Permissive Security enabled?

I use a legacy driver called HoRNDIS, which allows me to tether my Android phone's mobile connection over USB. However, because it doesn't use DriverKit, I have to set the Startup Security of macOS to ...
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TEMP files encrypted on IPhone?

I am going to sell my iPhone soon and wondered as to the safety of the temp files/cache files on iPhone for apps like twitter,Reddit,WhatsApp ETC. I am aware that iPhone has File based encryption and ...
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Turn off/on the privacy settings section

I turned off my private session (I don't know how it's officially called actually) for security reasons some time ago following a tutorial. And now I cannot access it to check some subscriptions in my ...
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1 answer
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Is it safe to share a presentation clicker with other presenters?

When presenting slides as a speaker at a conference, I use a Logitech Wireless Presenter Remote (link). Other speakers often come up to ask whether they can borrow the remote to advance slides on ...
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When I am changing access rights on files and folder, Mac is changing it without asking for administrator password? [closed]

I updated to Sierra and for a few days, whenever I am changing anything, it is always asking for my password to change the read/write permissions or anything else changed in System Preferences but now ...
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Block Gallery View in Finder on macOS

MacOS seems to have a fairly serious security issue that allows users to browse the internet without any restrictions, even with device control software installed. Chrome allows you to save any ...
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Can't re-enable SIP without an internet connection?

I disabled sip and now I can't re-enable it. I get an error that says "An internet connection is required to change security policy". I don't want to because I'm not sure if my wifi is safe.
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I want to see what is automatically launched at login

I have lent a Mac to a friend. This friend has access only to a standard account on the Mac. I trust him, but he is not serious and may download malware accidentally. I do not want to delete this ...
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Time Machine for Multiple standard user accounts on the same mac

I have multiple standard user accounts on a Mac OS computer. I have removed read and execute privileges for group and other on each home folder. This is because I do not want users to see other user's ...
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Consequence of removing iPhone from list of trusted devices

If I remove an iPhone from the list of trusted devices in AppleID does the pin code set for that phone still work and protect the phone?
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Issue with macOS plist controlling active windows

I've been trying to figure out for several weeks, but there's an erroneous plist causing active window to become inactive every time I log back in after my screensaver runs. I know that the window ...
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macapps.link - possible attack vector - could you pipe through some security script

A work colleague said she is using https://macapps.link/en/ to help speed up software installation on company Macs. Choosing apps to install results in a terminal command like this: curl -s 'https://...
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Find password protected files on macbook pro High Sierra

Is it possible to search for password protected Microsoft office (word or excel) files? I have forgotten some passwords and am trying to recover them. I noticed a password protected file is not '...
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What are "invalid characters" in PDF passwords? "Password contains illegal characters"

I wanted to password-protect a PDF in Preview via the "Edit Permissions ..." dialog. I used a simple random password generator to create a reasonably secure password ... only to get it ...
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Is it safe to use 4-digit PIN as MacOS password like in Windows 10?

On Windows 10 desktop I can set 4-digit pin to log in (after I've logged in with Microsoft Account) and it's relatively safe. So it's quick to type in the PIN throughout the work day. I wonder if it's ...
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MacBook Pro M1 is not connecting to Wi-Fi

I’ve been using MacBook Pro M1 for about an year now. Few days back, it had a backlighting issue (portion near bottom of the screen getting black spots) so I took it to Apple service centre and after ...
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Is iCloud Private Relay leaking my DNS queries to my ISP?

I noticed recently that despite iOS settings saying all DNS queries go through iCloud Private Relay's DNS servers, despite Private Relay using Oblivious DNS over HTTPS, and even despite dnsleaktest....
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Best way to clone M1 Macs

We have 10 M1 Macs here and counting. (6 Studios, 4 Minis.) I've got several of those new Studio's to provision. With our fleet of 2013 Trashcans, having a master image worked great. It'd be extremely ...
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Facetime is answered on remote / Camera turned on while no one is at the computer - and it's locked

Update: I've been able to confirm that Facetime is the trigger I've come home to unlock my OSX Monterey (build 21G72?), only to notice Facetime is running with the camera on. This has now happened ...
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Issue accessing Startup Security Utility on brand new Macbook Pro M1

I'm trying to follow this guide to install a driver for my audio interface on a brand new Macbook Pro M1 16". I'm booting into recovery mode, but when I click into "Utilities", I'm ...
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What's the best way to reinstall curl on MacOS?

I'm on MacOS, my Little Snitch firewall detected modification of curl. This could be an update or something else, but I wanna be 100% sure and want to reinstall curl. What's the best way to do so on ...
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Unlock Keychain items using Yubikey

I have setup my Yubikey as a smart card so I can login with the key and its PIN code. After logging in with the Yubikey, the login keychain is unlocked. However, opening a keychain item en trying to ...
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3 answers
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How to prevent contents of iCloud Drive from being accessible on on iPhone?

Simply put, I want to stay signed in to Apple ID on my iPhone 8, but I don't want the contents of my iCloud Drive to be accessible on the phone. At the very least, I would like there to be an ...
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1 answer
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`sudo passwd` asking for old password / reset recovery key

I'm an admin on my Mac (macOS Montrey 12.5), but forgot my own password. I can login remotely from another machine (SSH key based auth), and I have sudo configured with NOPASSWD for the admin group. ...
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Certificate recognized under Firefox but not under Keychain Access

I have a .pfx certificate that allows for access to work websites. The certificate is installed and authenticated directly through Firefox, and I have access to the websites. Because I need to test ...
-1 votes
2 answers
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Security Preferences: Open Anyway button gone

I'm developing a desktop app, so it's unsigned. When launched first time, it fails with access denied. I used to be able to click Open Anyway in the Security Preferences, but now that button is gone. ...
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How to query in a script if the Keychain is locked?

I found the security command line tool that can be used to lock or unlock a Keychain. Can it be used to query whether the Keychain is locked or not? I have a cron job running every hour that attempts ...
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How to see and modify the list of user-selected files and directories that a sandboxed app has access to?

I downloaded an app from the MacOS app store. Using codesign, I can see that the app has a number of entitlements including: com.apple.security.files.user-selected.read-write; and com.apple.security....
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List saved Mac FIDO2 Websites

Since iOS 14 and the correspondence MacOS Version, the devices itself can act like a FIDO2 security key and it works like a charm. My question now is, where can I see which websites are registered on ...
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4 votes
1 answer
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Can I see who is tethered to my hotspot?

Long story short - I have to tether at home for a few months. I have noticed my green icon flashing up while nothing of mine is connected (100% not mine). I'm a bit nervous that others are using basic ...
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1 vote
1 answer
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Is there a way to allow certain email senders to load Mail content directly?

With Monterey's Mail.app, there is now the network protection feature which is great and I want to keep it on. When you open an email, it prevents image loading and has a banner that says "Your ...
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1 vote
1 answer
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How can I allow ONLY iMessage (and not web browsing) through a firewall?

I've looked up what TCP ports iMessage uses to communicate with and Apple says: 80 (TCP) 443 (TCP) 5223 (TCP) In my particular use-case, web browsing (80, 443) is not allowed. But we would like to ...
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1 answer
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Missing certificates after upgrading offlineimap

I upgraded offlineimap via Homebrew and it is now now 8.0.0 with Python 3.10. Now I am missing the certificates: ERROR: Unknown SSL protocol connecting to host 'imap.mail.eu-west-1.awsapps.com' for ...
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Mac Os X Hacked? Unknown Username in Terminal! [duplicate]

I recently noticed an unusual "username" appearing in my Terminal window. Usually when I open Terminal I see something like this: Ryans-MacBook-Pro:~ ryan$ But recently when I've logged on I ...
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1 answer
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Apple mail can't verify certificate

I have set up a local mail server on our NAS to backup mails. For some time now Apple Mail can't verify the certificate. I found this Apple help post: https://support.apple.com/guide/mail/trust-a-...
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Firewall bug; socket programming

I am seeking a work-around for a bug in MacOS 12.4. I write C++ programs that create TCP/IP listening sockets. When I launch one of them, I see an error dialog containing language Do you want the ...
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1 answer
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Do iOS and iPadOS alert you if the certificate of a network you’re joining has changed

So if you joined a network in the past and trusted its certificate while at it, and saved it on your iPhone/iPad. Sometime later, if either: It’s the same network but their previous certificate has ...
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macOS Monterey version 12.3 how to rollback security override of an executable?

I have downloaded an unix executable file. It didn't open earlier showing this reason "Apple can’t check app for malicious software". But later when I opened it once, it was added as a ...
2 votes
1 answer
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macOS 13 Beta: Usual link no longer opens Pref Pane for Full Disk Access

In versions of macOS up to and including 12.x, the following link directly opened the Preferences Pane for Full Disk Access: x-apple.systempreferences:com.apple.preference.security?Privacy_AllFiles ...
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1 answer
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Question regarding Filevault on M1 computers

I wanted to ask this in this thread: What is the practical difference between an unencrypted, password-protected Mac and a FileVault encrypted Mac?? but it wouldn't let me because I'm a new user. I'm ...
2 votes
0 answers
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How to stop iTerm2 requiring being granted access every time

This issue is possibly related to this one, though I'm not quite sure how to translate those steps. I'm using macOS 12.4 on a MacBook Pro (14-inch, 2021), and would like to use iTerm2 as a replacement ...
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2 answers
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Apple vs. VPN for security and tracking

I use ExpressVPN full-time on all devices. Is there any added security or tracking benefit to adding any of Apple's IP address features, such as "Private Wi-Fi address" or "Limit IP ...
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2 votes
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Apple Pages (desktop) - clear previous documents?

For years I’ve created and used a Pages template document that contains the various document and font settings I regularly use. This makes it easier to begin writing right away. I usually forget to ...
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Settings for access to Files & Folders are ignored?

Recently after updating an app (Watchman's watchman, using Homebrew) is behaving like it no longer has access to Files & Folders, despite the fact that I have given it access in Security settings. ...
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1 vote
1 answer
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Can't sign into an iPhone 4 to set it up as a new device - stuck in a loop

When I sign into an iPhone 4 to set it up as a new device, my other Apple devices receive a prompt to allow the sign-in, I click yes, then receive a 6 number code. However, on my iPhone 4, I am still ...
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Apply outgoing firewall rules per app selectively (MacOS Big Sur)

Question: Which firewall can selectively apply multiple named domain resolving rules per app? E.g. like the One Periodic's Hands Off firewall Details: I'm looking for an app or combination of apps ...

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