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Questions tagged [anonymity]

The word "anonymity" is used to describe the state or quality of being unidentifiable for a person's or a group of people's actions or in the case of computers, data.

46
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7answers
109k views

How can BitTorrent traffic be anonymized with Tor?

This blog post from a few years ago suggests that using BitTorrent services over Tor is a bad idea for multiple reasons. However, it also suggests some fixes to get over these problems. Is using a ...
36
votes
4answers
44k views

Does Google know that I am using Tor Browser?

Whenever I search something through Google using Tor Browser, it: Either shows me the Google Sorry page and doesn't allow me to proceed further: Or asks me to enter the CAPTCHA to view the search ...
26
votes
4answers
39k views

Should I run Tor in a VM?

I've heard advice that to further protect my anonymity/privacy it's best to run Tor (the Tor Browser Bundle) in a Virtual Machine, which you would ideally roll back after each use. What extra ...
24
votes
2answers
145k views

Does my ISP know what sites I have visited if I am using Tor?

My question is basically what the title says: does my ISP know what sites I have visited if I am using Tor? I know that my ISP can know that I am using Tor. In addition I know that my ISP cannot read ...
23
votes
5answers
8k views

Securely hosting a Tor hidden service/site

There are some detailed instructions for setting up a Tor site at torproject.org1. It seems that it would be most secure to use a dedicated machine for this task if possible. I've read elsewhere that ...
22
votes
2answers
897 views

How can I prevent my different activities carried out over Tor being linked?

I know there are potential risks of carrying out multiple activities over Tor at the same time, when I don't want them to be linked. For example, I might browse one website giving one pseudonym, then ...
21
votes
1answer
641 views

What are the implications of a Relay hosting a Hidden Service?

Are there any implications if whilst running a non-exit relay, I also use the same machine to host a Hidden Service? Specifically: How will this affect the anonymity of the Hidden Service (in terms ...
18
votes
7answers
24k views

Can Tor be used with applications other than Web browsers?

From what I can see Tor mainly handles your web browser's traffic, but is there a way to do all of your connections through it? Like email, Dropbox, Carbonite backup, Skype etc? (Please explain ...
15
votes
2answers
6k views

Google indexing Onion hidden sites?

So I was searching to see what happened to Dread Pirate Roberts, the creator of underground marketplace Silkroad, and I came across something very strange; onion websites URLs being crawled by Google (...
15
votes
2answers
1k views

Is Tor's security compromised if other services are connecting in the clear?

I am using the Tor Browser Bundle, so all my internet browsing traffic is routed via Tor. However if I have other services like Dropbox, another web browser, etc. running on my machine that aren't ...
15
votes
3answers
2k views

Can government agencies track what sites I'm visiting when using Tor?

Can agencies such as the NSA or GCHQ track what websites I'm visiting if I'm using the Tor Browser Bundle? What about hidden services?
15
votes
3answers
5k views

Is it safe to enable the SSL Observatory feature of HTTPS Everywhere in Tor Browser?

Assuming I select "check certificates using Tor", can I safely turn this feature on without compromising my anonymity? Will this protect me against (or warn me about) a malicious exit node trying to ...
15
votes
3answers
501 views

Does my anonymity depend on the number of Tor users around me?

In other words, if there are many Tor users in my part of the world, do I get better or worse anonymity out of Tor compared to someone using it in an area with few Tor users?
13
votes
2answers
2k views

When I click “New Identity”, why do I sometimes end up with the same exit relay?

Three variants on the same question: If I click "new identity" in Tor Browser to get a new circuit, why does my new circuit sometimes have the same exit relay as the last circuit? Doesn't that hurt ...
13
votes
3answers
730 views

Are there any vulnerabilities in the process of onion routing?

In onion routing, messages are repeatedly encrypted and then sent through several network nodes called onion routers. Each onion router removes a layer of encryption to uncover routing instructions, ...
13
votes
1answer
4k views

Why does Tor use three hops, instead of two?

With onion-routing a relay in a circuit only knows its predecessor and its successor, while a "normal" proxy is just one hop, so that it knows who connects to it and where it has to connect to. ...
11
votes
1answer
279 views

How would a registration of the .onion gtld impact the Tor network?

The title pretty much says it all. What effects would a gtld registration of .onion domain have on the Tor network, is this something to worry about? Or is it something to welcome and slap a web2tor ...
11
votes
1answer
1k views

Is it dangerous to use Tails without persistent entry guards?

Being a LiveCD with no persistent storage by default, Tails currently does not use persistent Tor entry guards. In a recent post on the Tor blog, arma discussed the possibility of "improving Tor's ...
10
votes
4answers
5k views

Does my ISP know if I download Tor?

Does my Internet service provider know when and if I download Tor? How could I prevent that?
10
votes
4answers
301 views

Where in the world does Tor provide the highest degree of anonymity?

As we know, Tor hides users amongst the other users on the network, so the more populous and diverse the user base for Tor is, the more everybody's anonymity will be protected. So, in which part of ...
10
votes
2answers
277 views

Would running Tor client and Tor relay simultaneously harm my anonymity?

If I run a Tor relay in a machine and at the same time I use the same instance as a Tor client, would that harm my anonymity ? Would it be better to use different Tor instances on the same machine? ...
10
votes
2answers
546 views

What does NSA's attempt to deannonymize Tor mean for the average Tor user?

What do there revelations mean for us? http://www.theguardian.com/world/2013/oct/04/tor-attacks-nsa-users-online-anonymity
9
votes
4answers
3k views

Is it possible to run a secure email network using SMTP over Tor?

I have thought about some of the security issues inherent in email. For example that even if the body is encrypted the headers are plain text so metadata is available. I was wondering if this could ...
9
votes
4answers
2k views

Is there a way to defend oneself against a timing attack?

Is there a way for an end user to protect oneself against the timing attack when using Tor? For those, who are not familiar with it, a timing attack involves an adversary populating the Tor cloud ...
9
votes
1answer
71k views

How can one make Tor faster, when willing to to sacrifice anonymity?

It's clear, with special configs of this kind, anonymity will suffer. But if one is aware of that and willing to accept that... How can one make Tor faster? How can one use only fast relays? Will ...
9
votes
1answer
4k views

RDP over Tor - safe?

I am considering using remote desktop protocol(RDP) over Tor, to circumvent my country's blockade of RDP and also get the most of anonymity. I just tested a RDP connection with proxy chains remmina. ...
9
votes
1answer
77 views

Can intermediary nodes learn the length of a circuit?

This should be impossible because of the layered encryption, but some documentation suggests that this can somehow be done. From Section 5.6 [1] of tor's specification When speaking v2 of the link ...
8
votes
4answers
11k views

How can I use Tor without my ISP knowing?

I guess my first question should be, does my ISP know when I'm using Tor? I read somewhere that they do. In that case, the anonymity offered by Tor is rather limited. If someone suspects I posted ...
8
votes
6answers
692 views

Releasing a controversial movie torrent using Tor Network for security

I live in a dictatorship and use the Tor Network to get around censorship. I read that Torrenting over Tor Network is not good because of high Internet usage and it slows everything down. For a short ...
8
votes
2answers
711 views

Can using Tor make you a suspect?

When you are browsing regular WWW through Tor last node's (exit node's) IP is known to the server, also exit node's ISP can observe the traffic. So if somebody is browsing sites with illegal content (...
8
votes
6answers
18k views

Sending anonymous email

I need to send a completely anonymous email, with no trace of myself, my IP and my computer. Can I send it via Tor using an ordinary email server, ie, gmail, yahoo, whatever? PLEASE, I'm an ordinary ...
8
votes
3answers
38k views

Are browsing files stored locally?

Does Tor store any local files that show history in the same manner that Windows has a Temp folder? If it does, where are they located?
7
votes
5answers
2k views

Can technicians track my computer which has an image on it if I use Tor?

My laptop is imaged on a school network, which allows the technicians to remotely connect to it, locate it and track what I'm doing if I'm connected to their network, if I use Tor at home (or any ...
7
votes
3answers
12k views

How well-protected am I behind Tor?

I would like a general consensus, idea, or evidential proof of how protected I am from authorities behind Tor. As it stands, am I how much more protected and less likely from getting traced behind ...
7
votes
2answers
4k views

What Tor-friendly hosting providers allow anonymous accounts?

There are at least three levels to "Tor-friendly": allow clients; allow non-exit relays; allow exit relays. In any case, the provider must accept SSH connections via Tor. By "anonymous accounts", I ...
7
votes
1answer
4k views

What encryption algorithms does Tor use?

I am building an application that will be connected over tor, using onion services. I just realized that the file generated by Tor that contains the private key of the hidden site is only RSA 1024bits....
7
votes
3answers
3k views

Tor -> VPN or VPN -> Tor

I'm trying to decide which method is safer, Tor -> VPN or VPN -> Tor. Lets suppose both exit nodes are compromised(Tor and VPN). They were set up by the government and it's goal is to spy on users. ...
7
votes
2answers
994 views

How can I download Tor within China to get over the Great Firewall?

I am trying to download Tor within China to use as VPN. However, I cannot access the Tor download page using the mainstream internet inside of China. I am blocked by the Great Firewall, and recent ...
6
votes
2answers
481 views

When I use Tor, occasionally I get two different IP address simultaneously

When I use Tor circuit during last few months I use ip-check.info site to verify my IP address in addition to check.torproject.org site. What I have noticed is that occasionally I get two IP addresses ...
6
votes
1answer
2k views

Do Tor hidden service directories (HSDirs) see the REAL IP of users who visit .onion sites?

I'm reading here about Tor's 'DNS' resolving mechanisms (for both clearnet and hidden services) . The mechanism for connecting to a hidden service itself (via a rendezvous point in a 7-hop circuit ...
6
votes
4answers
5k views

LastPass + Tor = Anonymous?

could you give me your idea whether using Tor in conjunction with the password manager LastPass would compromise my anonymity? LastPass stores passwords on their servers. I do not know how often it ...
6
votes
2answers
270 views

Tracking User Location using Entry Guards?

Let's say that someone moves a Tor instance [1] from one internet access point [2] to another one. And let's say that an adversary is logging traffic from both access points. The adversary could log, ...
6
votes
3answers
31k views

OnionBrowser for iOS — how secure is it?

Currently it seems there are no torproject.org "officially sanctioned" solutions for iOS. However, there is a browser called OnionBrowser that passes check.torproject.org and is able to access hidden ...
6
votes
1answer
30k views

Does windows 10 compromise TOR?

Does running Tor on Windows 10 compromise my security? And further from that, are there any issues I need to be aware of while using Tor on Windows 10?
6
votes
3answers
676 views

What are the changes made to Firefox in the TBB?

Tor software recommends to use its own modified Firefox browser to get complete anonymity. I want to do same modifications in Firefox by myself. I have noticed following changes: Use Tor proxy ...
6
votes
1answer
6k views

OpenWRT - route all the traffic through Tor

Passing through all the traffic in the router to Tor sounds like a good idea. But there aren't any good documentations about the implementation of this idea. Could anyone please explain, how can ...
6
votes
1answer
2k views

Editing Wikipedia on Tor without creating an account?

It is widely known that editing Wikipedia on Tor IP addresses is systematically banned, to avoid vandalization from abusive users looking for no-risk anonymous editing, for their own wikipedia-...
6
votes
2answers
522 views

Can I use the Tor-Browser-Bundle update my ubuntu or it may be a bad idea?

I'm really enjoying using this software, but would like to upgrade my ubuntu by network tor with TBB using the command apt-get update and upgrade. I need advice if this is possible or compromise my ...
6
votes
3answers
943 views

Tor does not connect----The probable cause: The security system CYBEROAM

My college has installed a security system called Cyberoam. Now they have blocked many things including youtube, break, etc., as a counter measure, I tried to find a way to circumvent this security ...
6
votes
1answer
1k views

How much time they may take to track me down?

What I did: I used Tor Browser Bundle and created a fictitious Facebook account. The Facebook was registered through a fake email, No personal information was given. I uploaded the video and copied ...