iPhone keeps asking "Trust this computer and enter a password"

It would be better if you can please re-post with a screenshot, in order to understand the phenomenon better. Images/pictures speak louder than words. 

Please understand this is a public forum: While attaching a Screenshot, do not provide any personal credentials, such as IP address, Card detail, email id, apple id, IMEI number, Serial Number, Phone number, Order ID, if you are sharing a map ensure your location is not identifiable, etc.

With the limited information that you have provided, It is hard to even guess the problems faced by you. 

You may get faster and better responses to your query by --> Writing an effective Apple Support Commun… - Apple ...

Please re-post with detail so that someone else can help.

Change your settings for trusted computers

Your device remembers the computers you've chosen to trust.

If you don't want to trust a computer or other device anymore, reset the Location & Privacy settings on your iPhone, iPad, or iPod touch. Go to Settings > General > Transfer or Reset [Device] > Reset > Reset Location & Privacy. Now when you connect to formerly trusted computers, the Trust alert will ask you whether you trust that computer. 

This was a change made with iOS 16.1, and it is a workaround for a vulnerability that would allow someone who had hacked your computer to make a backup of your iPhone that they could download and essentially have access to your private information. Here is a summary of the vulnerability:

Available for: iPhone 8 and later, iPad Pro (all models), iPad Air 3rd generation and later, iPad 5th generation and later, iPad mini 5th generation and later

Impact: An app may be able to access iOS backups

Description: A permissions issue was addressed with additional restrictions. 

CVE-2022-32929: Csaba Fitzl (@theevilbit) of Offensive Security

If you want details you can find them in these two links:

• From the discoverer of the vulnerability→CVE-2022-32929 - Bypass iOS backup's TCC protection · theevilbit blog
• From a disinterested 3rd party→iOS Backup Passcode Prompt-iMazing

Thanks for the clarity Lawrence.

I must say though, that if some had "hacked my computer" I might have more serious things to worry about than this!

In any case, I think that the "fix" is not acceptable, and to some degree worse than the problem.

Hopefully they are working on a better one.

Can someone help me my apple id

Thank you Lawrence!

I just spent close to 2 hours on Apple support trying to resolve this problem that apparently is actually a "feature" now. Support reps had me reset all my settings on my phone again, too, before escalating my issue to the "Senior Advisors team". So now I've got another couple hours of going through and reconfiguring everything. Very annoying, and apparently I still have to put up with entering my passcode every time I want to backup my phone.

I agree with duerded that this seems like a temporary fix at best, and I hope they come up with something better. (Is the encryption on the backup not already enough to protect sensitive information?) I also hope that Apple gets around to telling their support reps about this change so that everyone else with an iPhone that they connect to their computer doesn't have to go through this as well.

Ken-183 wrote:

(Is the encryption on the backup not already enough to protect sensitive information?)

Yes, the backup encryption should be sufficient, but it is optional. Many users don’t encrypt the backup.

I would have chosen not to encrypt the backup myself, since I generally trust that my computer is as secure as I need it to be, but the Finder warned me that it would not back up my "sensitive personal data" like passwords and health data if I didn't encrypt it. So I always had my backups encrypted, since I wasn't interested in a partial backup.

Thinking about it in this context, this is a good security measure against the problem Apple tried to fix as well. If an unencrypted backup simply does not include sensitive personal data, the risk of data theft is far less.

Someone found a fix for it...

[Solved] iPhone constantly asking to trust computer and enter password? (fireebok.com)

NOT SO... I am using iOS 15.6.1 and have the same issue...

Hi Lawrence

We are still waiting for a proper fix to this issue, rather than having to live with this “workaround”.

Please can you confirm that *someone* is working on this?

Thanks

Derek

Lawrence isn't an Apple employee. Apple is not interested in doing the fix recommended in his "Disinterested 3rd Party" link, which would be the correct way to handle it.