2021 Feb 17, 12:16pm
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The use of "invisible" tracking tech in emails is now "endemic", according to a messaging service that analysed its traffic at the BBC's request.Hey's review indicated that two-thirds of emails sent to its users' personal accounts contained a "spy pixel", even after excluding for spam.Its makers said that many of the largest brands used email pixels, with the exception of the "big tech" firms.Defenders of the trackers say they are a commonplace marketing tactic.And several of the companies involved noted their use of such tech was mentioned within their wider privacy policies.Emails pixels can be used to log:if and when an email is openedhow many times it is openedwhat device or devices are involvedthe user's rough physical location, deduced from their internet protocol (IP) address - in some cases making it possible to see the street the recipient is onThis information can then be used to determine the impact of a specific email campaign, as well as to feed into more detailed customer profiles.
The java script in web page or app send a message back to one of their or partner servers.
A big part of identifying you is capturing your screen info when you're browsers in full-screen. Never do this on your laptop monitor, or use Tor. Even with Tor, they purposely make your screen slightly smaller as this form of ID'ing is still possible.