I keep getting pop-ups, saying , "iCal (Mail) can't log into your "Yahoo!" account because your password may be incorrect. The password may have been entered incorrectly, Reenter the password for account "Yahoo!" on the CalDAV server "caldav.calendar.yahoo.com".
In both cases, I click cancel, because I don't know why iCal and Mail should need to log into my Yahoo account. I click "cancel", and the box goes away, but within a couple minutes it is back. Should I be concerned that it is asking for a password? I don't remember installing CalDAV, except that from another question I saw here, it may have been installed when I changed from "MobileMe" to iCloud". My MobileMe/iCloud account isn't due to renew until June. I recently got an email telling me that MobileMe will shortly be shut down, and I needed to switch to iCloud. My understanding is that iCloud is really for mobile devices. I don't ahave any mobile devices and don't plan to get any. All I need is the iMac desktop, that I am currently using. I don't use a cell phone very often, so am using a TracFone for emergenies only while I am on the road.
I recently had a problem with MacKeeper jumping onto my Safari browser, when it appeared, as an ad in the sidebar of my Yahoo mail account. I was clicking to close my mail account, so my husband could log into his mail account, and all of a sudden, MacKeeper had opened a tab and hijacked my Safari browser. The only option to unlock my browser, was to click the OK button. There was no "x" or "cancel" button. I couldn't Force Quit or change Safari Preferences either, as several people suggested.
I have never been interested in "cleaner" apps (like MacKeeper), because I have heard that more often than not, these apps hide "stroke counting" codes in your computer, so they can steal passwords and do marketing. Therefore, there was no possibility that I clicked on the ad. I am positive my curser was on the upper left of the screen to logout, of Yahoo! Mail. Before clicking on OK, I installed an anti-virus app, to clean any viruses off my computuer and protect it from outside apps. (Although, I am not convinced they actually do that.) When I finally did click on OK, the MacKeeper website changed, and the short web address instantly changed to a long line of letters, numbers and sympols. I tried to click the "x" on the tab, to close the page, but it took three attempts to get it to close.
I am concerned that when MacKeeper hijacked my browser, it also installed codes, and may be using such pop-ups, as the CalDAV pop-up, to steal my passwords and access my accounts.
Call me paranoid, if you want, but I have talked to plenty of people, who don't think I am paranoid. They agree that MacKeeper shouldn't have hijacked my browser like it did, and may have hidden codes.
Since I only use the new iCloud, to access my Mail and iCal on my desktop iMac, do I really need CalDAV? I have looked on Finder and don't see CalDAV on the App list. Is there a way to uninstall or delete CalDAV without affecting my ability to use Mail and iCal on my Mac. Also, could someone tell me why CalDAV would need to access my Yahoo account? I did have it set up to show my Yahoo Mal on the same page as my .me.com mail, but deleted that function, as it was a pain to have it showing up in two places. In the end, it was easier to read and delete Yahoo messages, on the Yahoo Mail page. If it isn't possible or would compromise my ability to use iCal and Mail, is there a way that I can stop it from asking for my password?