MyECheck, Inc. (fka MYEC)

[mascale]

What Google and Banks Can Do! Essentially, Google can track the devices linked to an account. A bank can just as easily track the devices linked to an account. Then an app can just as easily track the devices, linked to the app--already shown, even how its done: In a separate post. Any particular app download is only counted once.
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Google makes it easy to see all the devices—laptop, phone, tablet, and otherwise—logged into your Google account. You can view both a list of IP addresses that have accessed it, and a list of devices that have actively used your account in the last 28 days.