Reviewing your authorized OAuth Apps
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In the upper-right corner of any page, click your profile photo, then click Settings.

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In the left sidebar, click Applications.

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Click the Authorized OAuth Apps tab.

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Review the tokens that have access to your account. For those that you don't recognize or that are out-of-date, click , then click Revoke. To revoke all tokens, click Revoke all.

Reviewing your authorized GitHub Apps
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In the upper-right corner of any page, click your profile photo, then click Settings.