Is it possible to track Double VPN if the VPN provider is reliable?

Question

VPN

It is very easy to track a normal VPN and it is clear why: 1) The Internet provider sees the ip of the VPN server to which you are connected, sees the amount of traffic, albeit encrypted, as well as the time and duration of the connection. 2) So if someone accesses the network from the ip of the VPN server, and also sends the same amount of traffic and at the same time when the user is connected to this server, then it becomes clear who is hiding behind this VPN server.
BUT can intelligence agencies trace Double VPN? After all, it turns out that the final ip is no longer known to the provider, provided that the VPN provider (NordVPN) does not give out data to special services and does not keep logs, and there are no vulnerabilities in the OS (which eliminates DNS leaks, real ip, etc.).
PS Please do not write, but who needs you, what kind of paranoia, etc. I'm just interested in the DoubleVPN tracking mechanism itself, if at all possible.

Answer 1

Recently, such questions have somehow disappeared here ...
In all the "double", "triple" ..., "ten" VPN, VPN-over-Tor, VPN-over-Tor-over-VPN and other perversions that technical means to solve the administrative problem - they have one extremely vulnerable point. It is you :)
At the household level, one VPN is enough - a neighbor / wife / employer has no way to get logs from a VPN provider or site. At the level of opposition to the state, almost everyone for some reason assumes that the state will follow certain rules - for example, try to unwind the chain of deanonymization from the far end. It won't do it. Will not. Other people work there, and other methods are applicable to them. And the legendary and anecdotal common name "soldering iron" or "thermorectal cryptanalysis" - it's funny exactly until the moment you encounter it :( Because then you yourself will tell and show everything.

Answer 2

06/16/2020 at about 5:30 am unknown to me (CryptoTab browser) on my computer and laptop hack. attack. It was like this: I live in Germany, until this day I installed Norton Security (license) on my computer, I had VPN CyberShot in addition to all this. The protection was in full, the settings were maximum. Since I am not familiar with Norton, I started digging into the functions, and I saw the function of my Internet connections to servers. Everything was in order, one thing was embarrassing - this browser was connected to the server and the second connection was a human figure. Norton showed the statistics of this figurine with a slip of the tongue: He doesn't know anything about it, but from some sources the figurine is safe. Well, I decided to check the figurine's safety using Norton's monitoring function. Turned it on, a sign appeared in the lower right corner: Monitoring is in progress. In about a minute. There was an entry CryptoTab browser detected monitoring and is trying to track. After 30 seconds, the sign flashed in full with warnings. About determining my location. And after 30 seconds, Norton and CyberShot popped up on the monitor, glowing red and giving errors. Well, before my eyes, the destruction of Programs began, they began to jump out to the desktop and open up, giving out a bunch of errors on the desktop, and the icons from them turned into folders. The OS did not seem to be touched, I abruptly turned off the system, the system turned off normally. Did a full reinstall from the OS media. But it wasn’t there, when I connected to the net and started installing programs, the system blocked me with an explanation (Win 10 Pro Licensez.) - Your boss forbids you to install programs on this computer. The feeling of someone's presence doesn't go away. This crap to me all social. blocked. Then I stole photos from folders, didn’t copy, stole. In the smartphone, she sent a search. Saved me some of the photos. All of this continues to this day. I asked Microsoft for help, the answer is we don’t know what you have, but something is definitely wrong. They suggested that I install a second antivirus. I refused the services of Norton, because Norton of this ??? very annoying. And constantly something happened to Norton. It looks like a fairy tale. That's what Norton Security support told me.
This one or this one does it like that, I only realized later. If he does not know the password from something mine. He doesn’t know how, but he blocks access by making a phishing site and doesn’t let him in, I then read that you can see the difference between fish and original. At the fish site, the words in the left corner doubled, I did not attach any importance to this and requested a new password. After confirming and setting a new password. The site worked perfectly and the words no longer doubled. And before that, the password was entered and checked 10 times. The site is like a site, only the words in one corner are doubled. The site was my VPN CyberShot account. I apologize for the mistake in the name: CyberGhost VPN.