Amp device agent mac os что это

AMPDevicesAgent explained

macOS tutorial 2019-12-13 2020-07-05 6

AMPDevicesAgent helps with synchronisation of iOS devices, but can also be the cause of many errors and high CPU usage. What is AMPDevicesAgent and why do you need it?

AMPDevicesAgent helps with synchronisation of iOS devices, but can also be the cause of many errors and high CPU usage. What is AMPDevicesAgent and why do you need it?

What is AMPDevicesAgent?

AMPDevicesAgent in Catalina is a new background daemon in macOS Catalina responsible for synchronisation of iOS devices using Finder. This functionality was split from iTunes in Catalina, and such helper code has been split into different daemons, such as this one. AMPDevicesAgent is located at:

This agent is not malware but is part of macOS and written by Apple. It works alongside AMPDeviceDiscoveryAgent which performs the discovery of connected devices over Wi-Fi when the relevant option is enabled in the device’s settings in Finder.

AMPDevicesAgent wants to use your confidential information

AMPDevicesAgent wants to use your confidential information stored in “iOS backup” in your keychain. To allow this, enter the login keychain password.

This message is displayed when AMP devices agent in macOS Catalina needs to perform a local backup of your iPhone or iPad. You can grant this permission by entering your keychain password, which by default is the password you use to log into your Mac.

iOS Backup is the password to an encrypted backup of your iPhone iOS device or iPad iPadOS device. To fix the issue and stop the prompt from being displayed, follow the steps below:

1. Open Keychain Access.app. Find this in /Applications/Utilities (or Spotlight search with cmd-space).
2. Search for ‘iOS Backup’. You’ll find one or more application passwords in the login keychain.
3. Double-click on the first password row in the results. An attributes page opens for the password.
4. Switch to the Access Control tab at the top of the dialog.
5. Under ‘Always allow access by these applications’, check the box below those words. If ‘AMPDevicesAgent’ is already listed in the box, go to step 9. If not, continue with step 6.
6. Click the plus (+) button at the bottom-left corner of the window.
7. Press shift-cmd-g and paste the path:
   /System/Library/PrivateFrameworks/AMPDevices.framework/Versions/A/Support/AMPDevicesAgent
8. Click the blue Add button at the bottom-right of the window. This adds AMPDevicesAgent to the list of applications allowed to access the iOS backup keychain item.
9. Close the window. Repeat with any other iOS backup items in the list.

AMPDevicesAgent CPU

AMPDevicesAgent high CPU up to 100% of total or 200% in Activity Monitor can be caused by an iOS sync in progress. This might not be immediately apparent, since synchronisation with an iPhone can happen in the background, wirelessly. This is perfectly normal and AMPDevicesAgent CPU will decrease after the sync or backup has concluded.

You can either disable automatic synchronisation always or just disable wireless background sync. See the next section for detailed instructions.

Remove iPhone from Finder sidebar

Choose the device in the sidebar and untick ‘Show this iPhone when on Wi-Fi’.

This will hide the device in the sidebar when not connected to your computer over USB: when the device is on the same Wi-Fi network as your Mac. This won’t hide the iPhone in all cases.

All connected iOS devices will be shown in Finder sidebar when connected via a USB to Lightning cable. If your device is connected with USB, you’ll need to disconnect it to remove it from the sidebar. Alternatively, you can remove all iOS devices from Finder sidebar by going to Finder Preferences (cmd-,) and deselecting ‘CDs, DVDs and iOS Devices’ from the Sidebar tab.

Stop Finder automatically opening

You can disable this by running the following command in Terminal.

This sets a user preference on the com.apple.AMPDevicesAgent.plist preference list to disable AMPDevicesAgent from automatically syncing iOS devices, which stops Finder automatically opening when connecting such a device. You need to log out and back in for the change to take effect.

To undo the change, delete the preference:

If you only need to disable AMPDevicesAgent temporarily, you can send the process the STOP signal instead:

What does the defaults write command do?

The command given at the top of this post uses the defaults command line tool to set ( write ) a value to a preference list. Preferences are stored in

/Library/Preferences . This preference is then read when AMPDevicesAgent is loaded by macOS and changes its behaviour.

Disable iPhone syncing in Finder

You can disable all iPhone management in Finder by setting the ignore-devices preference. This will remove the ability to configure iOS devices in Finder, requiring the use of third-party tools. This is not recommended unless you are familiar with such tools or do not use a computer to manage your device.

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George, thank you so much for your post!

After upgrading to Catalina, and connecting my iPhone, I was presented with an automatic sync that stuck at ‘Syncing (Step 4 of 4) – Waiting for changes to be applied’. This didn’t complete, even after a few hours. Nothing I tried would let it get past this, and there’s no UI option to terminate it. (So that I could uncheck ‘Automatically sync when this iPhone is connected’).

The step ‘Stop Finder automatically opening’ above did the trick. I can now connect my phone, turn off this option, back up, and I’m back in control. I was thinking I’d have to switch to iCloud backup, which I really don’t want to do – I want to be in control of my backups.

Thank you for a very comprehensive article!

George, I avoid iCloud and want to set up my Mac to automatically perform encrypted iPhone backups when the phone is connected via cable (or even better, whenever it’s seen on WiFi).

It seems that “sync” and “backup” are two different things, because the “Sync” button, as well as the “Automatically sync when this phone is connected” option, do not bump the “Last backup to this Mac” timestamp—aka, they don’t trigger backups. I need to manually press the “Back Up Now” button for the timestamp to update.

Is there some way to trigger the Backup via Automator (“Watch me do” failed), or even better via a shell command that I can periodically run via Cron?

This is about Big Sur. Thank you!

Sounds like you want /System/Library/PrivateFrameworks/MobileDevice.framework/Versions/Current/AppleMobileDeviceHelper.app/Contents/Resources/AppleMobileBackup . Pass it -h for usage information. I can write a full blog post about this if that would be helpful? I can’t find any documentation on that command actually!

I went through the steps of adding AMPDeviceAgent to the list of allowable applications but after I hit save changes, I get beach-balled for a long time…is this normal? Do I just have to wait it out?

The problem is that all Apple passwords I know of are not working for the password prompt. What should I do?

defaults delete -g ignore-devices -bool false

This command is not working for me. Command syntax is incorrect

Thanks, I’ve updated the post to fix the typo with that command.

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Question: Q: what is AmpDevices Agent and why does it want to know my passwords ?

What is AmpDevices Agent and why does it want to know my passwords ?

Posted on Oct 9, 2019 5:23 PM

Very informative and thoughtful replies on this topic, thank you all very much. seems as though we’re all in the same kettle of soup.

Posted on Dec 5, 2019 6:26 PM

Helpful answers

tell FaceTime free for have ties or Markus

Oct 12, 2019 6:08 PM

I have that as well, I am denying it access. Funny how there is a deafening silence about this

Oct 12, 2019 6:07 PM

I was getting this too after the update of the update to Catalina. Annoying. I denied and ignored it but it kept coming back after a start up. It’s part of Catalina’s zealous security. Contacted support, had a long call from and advisor. She admitted Apple have not explained this very well when I told her that people are wary about handing over their Mac passwords to unknown dialogue boxes. She said to note the gold padlock in the dialogue box — this indicates that it’s to do with your Mac’s security. Although she didn’t explain what an «AMP Device» meant, it seems to occur if you have an external hard drive connected — mine is a Time Capsule. ‘Always Allow’ it once and it goes away.

Oct 17, 2019 3:26 AM

AMPDevicesAgent is a macOS component used for iOS device synchronization.

Apple could have been more forthcoming with its appearance but it’s normal.

Nov 27, 2019 6:15 PM

Thanks SteveJolliffe, well done. This was driving me bonkers. Good to know what it is (sorta – wish Apple explained it). Like you, I was wary about handing over Mac passwords to unknown dialogue boxes.

As a side note, «updating» to Catalina is easily the most troublesome mess I’ve dealt with since switching from OS 9 to OS X eons ago. None of my trusted legacy 32-bit design/art apps run anymore. Had Apple bothered to make this fact crystal clear, I would never have hit the download button. I lost two full days of billable time (with my blood pressure through the roof) and missed a client deadline. Grrrr.

Oct 17, 2019 10:23 AM

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I have that as well, I am denying it access. Funny how there is a deafening silence about this

Oct 12, 2019 6:07 PM

tell FaceTime free for have ties or Markus

Oct 12, 2019 6:08 PM

I was getting this too after the update of the update to Catalina. Annoying. I denied and ignored it but it kept coming back after a start up. It’s part of Catalina’s zealous security. Contacted support, had a long call from and advisor. She admitted Apple have not explained this very well when I told her that people are wary about handing over their Mac passwords to unknown dialogue boxes. She said to note the gold padlock in the dialogue box — this indicates that it’s to do with your Mac’s security. Although she didn’t explain what an «AMP Device» meant, it seems to occur if you have an external hard drive connected — mine is a Time Capsule. ‘Always Allow’ it once and it goes away.

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AMPDevicesAgent? What Is It?

A lot of Mac users have stated that a popup message keeps asking them to enter their keychain passwords. The notification message says:

“AMPDevicesAgent wants to use your confidential information stored in iOS backup in your keychain. To allow this, enter the login keychain password”

As you can see, the message does not say if this is Apple or not and many users are asking if they should enter their passwords. It is asking for access to your keychain. And it looks suspicious. And it is not clear why the process needs the keychain access. So you may have many security concerns and so you may ask these questions below:

• What is AMPDevicesAgent?
• Why does it need your password?

The dialogue box has three options: Always Allow, Deny and Allow. If you deny this, it will keep asking.

AMPDevicesAgent

Here are the basic answers:

• AMPDevicesAgent is not 3rd party software and it is not caused by a virus (or malware). Actually it is included with macOS Catalina. Apple introduced this with Catalina so it is new:

• You can check this by going to Activity Monitor, it will show up as an Apple process.
• This notification is normal, it is expected behavior and you may enter your password. This should not be a cause for concern. When you enter your password, an unknown third party will not have your sensitive info. if your mac is trusted, you may want to check Always Allow.
• This new AMPDevicesAgent is apart of the Frameworks in your Library folder to allow Finder to synchronization and backup with iOS & iPadOS devices. Basically, AMPDevicesAgent is a new device manager. It is used for backing up, restoring and updating your devices.
• This may appear:
  • When you sync your devices over Wi-Fi
  • When you connect your iPad or iPhone for the first time to your Mac with a USB cable.

If you do not know your keychain password, do not worry, the keychain password is your login password. You can always change this by going to System Preferences > Security and Privacy > General. And then click the Change Password button.

If you are not satisfied, feel free to raise your concern about this by leaving feedback.

Serhat Kurt

Dr. Serhat Kurt worked as a Senior Technology Director. He holds a doctoral degree (or doctorate) from the University of Illinois at Urbana / Champaign and a master’s degree from Purdue University. Here is his LinkedIn profile.

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14 thoughts on “AMPDevicesAgent? What Is It?”

It was hogging all my resources. I force killed it.

Can you explain what is the purpose of this AMP thingy. Why was it introduced

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AMPDevicesAgent? Was ist es? (Erklärt)

Geschrieben von 2021-10-10

Sie fragen sich, was ‘AMPDevicesAgent’ ist und warum es auf Ihrem Mac ausgeführt wird?

Wenn Sie diese Frage in Gedanken stellen, haben Sie wahrscheinlich Ihren Aktivitätsmonitor geöffnet und habe dieses Programm gefunden. AMPDevicesAgent verbraucht eine große Menge Ihrer CPU. Obwohl es nicht ungewöhnlich ist, dass Computer Hintergrundprozesse haben, die viel Rechenleistung erfordern. Leider ist der Mac davon nicht ausgenommen.

Wenn es keine klare Erklärung für seinen Zweck gibt, kommen wir oft nicht umhin, uns zu wundern. Warum ist es überhaupt da? Hier bei Saint ist es unser Ziel, unseren Lesern die verständlichsten Erklärungen sowie alle Lösungen zu bieten, die Sie für Ihre Probleme benötigen.

In diesem Artikel erklären wir Ihnen, was das AMPDevicesAgent-Programm ist. was es tut, warum es wichtig ist und warum es manchmal so viel von Ihrer CPU beansprucht.

Lass uns beginnen!

Was ist AMPDevicesAgent?Warum benötigt AMPDevicesAgent so viel Rechenleistung?Wie deaktiviere ich AMPDevicesAgent?Was ist AMPDevicesAgent?

Da wir uns in der heutigen Welt ständig auf die Funktionsfähigkeit von Technologien verlassen, ist die regelmäßige Synchronisierung unserer Informationen mit unseren „Cloud-Daten“ zu einem notwendigen Komfort geworden. Das Synchronisieren unserer Daten und Informationen mit der Cloud hat uns allen gemeinsam viel Zeit gespart, aber es kann Ihren Computer belasten.

Das AMPDevicesAgent-Programm ist dafür verantwortlich, Ihre Geräte und Daten miteinander zu synchronisieren und zu Online-Servern. Obwohl Sie manchmal nach Ihren persönlichen Zugangsdaten gefragt werden, seien Sie nicht beunruhigt, da dies nur ein Protokoll ist, das es ermöglicht, auf Ihre lokalen Dateien zuzugreifen und sie zu sichern.

Dieser Prozess verwendet von iTunes verwaltet werden, wurde aber vor etwa einem Jahr getrennt. AMPDevicesAgent ist jetzt ein Produkt von Apple Catalina und allein für die Synchronisierung und Backups verantwortlich.

Obwohl dies wie ein einfacher Vorgang erscheinen mag, kann er Ihren Computer ziemlich belasten. Das Hintergrundprogramm nutzt in erster Linie die Rechenleistung Ihrer CPU, um effektiv auf Ihrem Computer zu funktionieren.

Warum benötigt AMPDevicesAgent so viel Rechenleistung?

Es kann extrem mühsam sein, wenn Sie es versuchen um zu arbeiten, ein Video zu bearbeiten oder eine andere intensive, aber wichtige Aufgabe zu erledigen, nur um festzustellen, dass Ihre CPU bereits mit einer Hintergrundaufgabe beschäftigt ist, von der Sie nichts wissen.

Nun, Wenn Sie feststellen, dass der AMPDevicesAgent die CPU-Verarbeitungsanforderungen erhöht, synchronisiert er Ihr Gerät höchstwahrscheinlich mit Ihrem iPhone oder iOS-Gerät.

Dies geschieht im Hintergrund Ihres Computers und Sie werden nicht davon benachrichtigt in den meisten Fällen. Dies ist völlig normal und die CPU-Auslastung nimmt ab, wenn die Synchronisierung vollständig abgeschlossen ist.

Die automatische Synchronisierung kann ebenso wie die drahtlose Hintergrundsynchronisierung im Allgemeinen deaktiviert werden. Dies bedeutet, dass Sie Ihre Dateien manuell hochladen und sichern müssen, aber dies kann unnötige und vorzeitige CPU-Lags auf Ihrem Computer vermeiden.

Wie deaktiviere ich AMPDevicesAgent?

Zum Glück haben Sie kann diesen automatischen CPU-intensiven Prozess deaktivieren. Es gibt einige Einstellungen, an denen Sie herumfummeln können, um zu verhindern, dass der Prozess ohne Ihr Wissen im Hintergrund ausgeführt wird, oder um zu vermeiden, dass der Prozess ganz ausgeführt wird.

Wir von Saint möchten Sie jedoch daran erinnern, dass wichtig, Ihre Informationen so oft wie möglich zu synchronisieren. Die regelmäßige Synchronisierung Ihrer Datendateien und -ordner gibt Ihnen ein unvergleichliches Gefühl der digitalen Sicherheit, insbesondere beim Schutz Ihrer persönlichen Daten.

Wenn Sie diesen automatischen Prozess deaktivieren möchten, versuchen Sie, eine wöchentliche Praxis festzulegen manuelles Hochladen und Sichern Ihrer Dateien.

Es gibt mehrere Methoden, um die automatische Synchronisierung von AMPDevicesAgent oder Ihrem iPhone mit Ihrem Mac zu deaktivieren, z. B. das iPhone aus dem Finder entfernen, das automatische Öffnen des Finder stoppen und die iPhone-Synchronisierung im Finder deaktivieren. Diese Prozesse werden hier näher erläutert.

Da Sie nun am Ende dieses Artikels angelangt sind, hoffen wir, dass dieser Beitrag eine umfassende Erklärung liefert, die Ihnen hilft zu verstehen, was «Antimalware» ist Service Executable’ ist und warum es auf Ihrem Mac ist. Wenn Sie weitere Fragen zu diesem Artikel haben, können Sie unten einen Kommentar hinterlassen.

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