Safari fills in bizarre usernames and passwords

I'm on a 2014 Mac Air up to date with High Sierra.


Every time I start to log into a site with Safari, it fills in these weird, lengthy usernames and passwords. Behold:


User uploaded file


I've gone into my password preferences and looked for these demons. They're not there. But they keep creating anew when I try to log into any site.


How can I make this stop? Thanks.

MacBook Air (13-inch, Early 2014), macOS High Sierra (10.13.3)

Posted on Apr 16, 2018 2:18 PM

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Question marked as Top-ranking reply

Posted on Apr 16, 2018 5:04 PM

You can delete those keychains ...



Open the Keychain Access app located in HD > Applications > Utilities


Then select Passwords on the left.


Then in the search field top right corner of the Keychain Access window type: M


The results should reveal the keychains from the image you posted.


Right or control click a keychain then click Delete.

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3 replies
Question marked as Top-ranking reply

Apr 16, 2018 5:04 PM in response to Eternal Novice

You can delete those keychains ...



Open the Keychain Access app located in HD > Applications > Utilities


Then select Passwords on the left.


Then in the search field top right corner of the Keychain Access window type: M


The results should reveal the keychains from the image you posted.


Right or control click a keychain then click Delete.

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Safari fills in bizarre usernames and passwords

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