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Here's a practical reason for doing this. https://shkspr.mobi/blog/2018/01/mailchimp-leaks-your-email-address/ https://shkspr.mobi/blog/2018/01/mailchimp-leaks

by edent 6y ago

Here's a practical reason for doing this. https://shkspr.mobi/blog/2018/01/mailchimp-leaks-your-email-address/ https://shkspr.mobi/blog/2018/01/mailchimp-leaks-your-email-... A few years ago, I discovered that referrers from MailChimp let you unsubscribe people from lists, and see their email addresses.

maddyboo 6y ago
Very cool discovery. This is an excellent example of why putting sensitive data inside URLs can be problematic and should be done with great caution. It should be added that the eventual elimination of referers won’t make URLs safe. There are countless other ways they can leak.