technically, there is a way to do this - unfortunately, the feature doesn't seem to be working. if you log onto paypal on your computer and click the gear icon in the upper right, and then click the security tab and then click: Stay logged in for faster purchases, this will log out all devices. unfortunately, when I do that, it logs me out of the computer but when I go back in, it hasn't updated that. I sent an email to paypal re: this issue.
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