So the blockchain analysis arm of Coinbase, which was originally a company known for aiding and abetting torture and other human rights abuse, is doing something shady!? Well, I never!
As with everything to do with Coinbase, this is awful but not in the least bit surprising. We have known for years that Coinbase collect every possible shred of data they can about you, and we have known for years that Coinbase will sell and share that data with absolutely anyone who will pay for it. Go and have a read of Section 3 at this link:
https://www.coinbase.com/legal/privacy. Here is just some of the data Coinbase collects on you:
Personal Identification Information: Full name, date of birth, nationality, gender, signature, utility bills, photographs, phone number, home address, and/or email.
Formal Identification Information: Government issued identity document such as Passport, Driver's License, National Identity Card, State ID Card, Tax ID number, passport number, driver's license details, national identity card details, visa information, and/or any other information deemed necessary to comply with our legal obligations under financial or anti-money laundering laws.
Institutional Information: Employer Identification number (or comparable number issued by a government), proof of legal formation (e.g. Articles of Incorporation), personal identification information for all material beneficial owners.
Financial Information: Bank account information, payment card primary account number (PAN), transaction history, trading data, and/or tax identification.
Transaction Information: Information about the transactions you make on our Services, such as the name of the recipient, your name, the amount, and/or timestamp.
Employment Information: Office location, job title, and/or description of role.
Correspondence: Survey responses, information provided to our support team or user research team.
Audio, electronic, visual and similar information, such as call and video recordings.
...
Online Identifiers: Geo location/tracking details, browser fingerprint, operating system, browser name and version, and/or personal IP addresses.
Usage Data: Authentication data, security questions, click-stream data, public social networking posts, and other data collected via cookies and similar technologies. Please read our Cookie Policy for more information.
Then go and read Sections 5 and 7 to see just how many different entities they share all this data with. I would quote it all here but it would take up far too much space since the list is so long.
We have also known for years that various branches of the US government are some of Coinbase's biggest partners, with multi-million dollar contracts from the FBI, IRS, ICE, SEC, and others. If you are a Coinbase user, then all the information listed above will be being shared with all of these agencies (not to mention the dozens of other third parties who buy this information from Coinbase).