For those not already in the know, you should be aware that:
- The admins of major websites (Twitter, Discord, Reddit, Facebook, Instagram, etc.) all have complete access to your information.
- Your IP, Email, Phone, etc is visible to even low-level employees tasked with moderating.
- Your "private" messages are 100% visible to all admin.
- There is likely no policy in place to prevent disgruntled employees from accessing your account if they want. (example: Low level employee deleted Trump's twitter)
- Major doxxings are done by looking at private information and then using parallel construction with public facing details to make a plausible doxxing story.
- Assume anything you write on social media is read by others and will be leaked if it is advantageous to do so.
Some industries had to set up audit trails to prevent misusing information (for instance, pharmacy employees looking up famous names).
This does not apply in tech. There is no law. The only privacy you can achieve is the privacy that you implement.
Using the same browser for personal browsing and private browsing allows websites and advertising networks to fingerprint you and they will know you are the same person.
Cross contamination only requires one small detail to get through. Facebook on your phone monitors what wifi networks you are near and determines your location and possible friends based on this, regardless if you log in / out / have a burner phone / turn off gps.
Different browsers on the same computer may still leak enough information to make connections.
VPNs only disguise your IP/Location but cannot prevent you from leaking the same information just from a different IP.
If you log into a personal account and a burner account, reddit already knows who you are and has connected them.
Major retail stores pay large amounts of money to track you by your phone, rarely needs software installed to do it. Facebook, even logged out and never set up, is complicit and will report to home as you walk through a mall what stores you are near.
Be careful with what you put online.