Strange iCloud Prompt

[AZhappyjack]

About 3 hours ago I started getting prompted to enter my "correct" iCloud password. The message displayed contends that my password (previously and subsequently entered) is incorrect. This is in spite of the fact that I know it’s correct, and going to Settings > iCloud indicated that I am logged in properly. Likewise, I can also log into iCloud.com using my Apple ID and the known password.

The popups prompting for the password come about every 20 minutes or so.

I am running the Yosemite GM candidate 2.

 

[fruitpunch.ben]

About 3 hours ago I started getting prompted to enter my "correct" iCloud password. The message displayed contends that my password (previously and subsequently entered) is incorrect. This is in spite of the fact that I know it’s correct, and going to Settings > iCloud indicated that I am logged in properly. Likewise, I can also log into iCloud.com using my Apple ID and the known password.

The popups prompting for the password come about every 20 minutes or so.

I am running the Yosemite GM candidate 2.

Getting the same thing. Noticed it first today about 4 hours ago. Am running public beta 4. Double-checked that no one hacked my iCloud account, it still has the same password. No idea what's going on

 

[deviant]

may be a fantastical bug. try contacting them. i didn't update to gm 2 yet, so i can't test, sorry.

 

[aikend]

Do you have two factor auth enabled on iCloud? If so, you may need to create an app-specific password.

 

[geoffm33]

Do you have two factor auth enabled on iCloud? If so, you may need to create an app-specific password.

That was my thought as well. Prompt popped up as I was leaving office. I'll try that tonight.

 

[AllergyDoc]

Made me go through elaborate sign in procedures on both of my Macs that involved inputting numbers Apple texted to my phone.

 

[AZhappyjack]

Do you have two factor auth enabled on iCloud? If so, you may need to create an app-specific password.

That was it. I discovered it after digging around a bit. Was coming here to post the solution.

I should have recognized the icon as Fantastical.

Thanks.

 

[fruitpunch.ben]

That was it. I discovered it after digging around a bit. Was coming here to post the solution.

I should have recognized the icon as Fantastical.

Thanks.

Ah of course.
I didn't look closely enough at the icon and thought it was Calendar.
Strange that it comes up now. I've had 2 factor authentication enabled for months, and this is the first I've seen of this error.
Checked App Store, and fantastical hasn't been updated that I can see. Strange that it randomly just started

 

[dukee101]

Ah of course.
I didn't look closely enough at the icon and thought it was Calendar.
Strange that it comes up now. I've had 2 factor authentication enabled for months, and this is the first I've seen of this error.
Checked App Store, and fantastical hasn't been updated that I can see. Strange that is randomly just started

+1, this just started happening to me an hour ago. Fantastical on both of my Macs running OS X 10.9.5 Mavericks has prompted me for my iCloud password. I've also had 2-factor auth enabled for months. There must've been some kind of server auth check today across a bunch of accounts that prompted this. I went into my Apple ID settings and made app-specific passwords for Fantastical which then fixed the issue.

 

[AZhappyjack]

Ah of course.
I didn't look closely enough at the icon and thought it was Calendar.
Strange that it comes up now. I've had 2 factor authentication enabled for months, and this is the first I've seen of this error.
Checked App Store, and fantastical hasn't been updated that I can see. Strange that it randomly just started

After I discovered the cause of the prompt, I saw a tweet from @Flexbits (Fantastical creator) mentioning the issue. Apparently it was something that Apple started enforcing yesterday.