Category Archives: Tor Browser

Your web browser knows a lot about you, and tells the sites you visit a lot about you as well if you let it. Weve talked about which browsers are best for privacy before, and the best tools to lock your browser down, but there are also entire browsers designed to keep your data as secure and private as possible. Lets take a look at some of them.

Whether your preferred browser is Chrome or Firefox, you have a few options to help you browse more securely assuming youre ready to give up on the version everyone else uses and try something new. Here are some options worth trying out.

Tor is going through a rough period right now, but overall, the service is still excellent if youre looking to preserve your anonymity and privacy, and if you want to keep away from malicious tracking cookies and ads. Tor routes your traffic across a series of relays designed to keep your real identity and computer as anonymous as possible. Its not perfect and it certainly has its drawbacks, but if anonymity is your end goal, the Tor Browser (more specifically, the Tor Browser Bundle) is a great way to go.

The Tor Browser is based on Firefox, open source, and comes preconfigured to access the Tor network. The vast majority of built-in plugins and services have been disabled or stripped out, and its important that you leave them that way, or else data you mean to keep private can leak to the sites youre visiting. Available for Windows, Mac, Linux, and in portable forms for all of those, its a great way to surf when youre using an untrusted system, want to keep your identity concealed, need to get around content filtering or site-specific blocks, or want to keep your physical location a secret from sites downstream/

Remember Tor is designed for physical and digital anonymity, not security and encryption. What you do while youre using it may give away that anonymity (such as sending emails or logging on to web services), and while communications inside the Tor network are encrypted, as soon as you leave the network, your data is in the clear (if its not encrypted another way.)

Epic Privacy Browser is based on Chromium, is open-source, and is available for Windows and Mac. Weve highlighted Epic before, and while theres genuine scepticism about the browser and its roots in Chromium (the open-source platform upon which Chrome is also based), overall Epic does what it promises. The browser blocks ads, tracking cookies, social boxes and widgets (until you interact with them), blocks tracking scripts and modules from loading (which results in faster-loading web pages), and sandboxes third-party processes and plugins. Epic Browser even encrypts your connection whenever possible (largely by shunting to HTTPS/SSL whenever its available), routes your browsing through a proxy, and protects you from widgetjacking or sidejacking when youre browsing over Wi-Fi.

All of these features are great, and the browser itself is fast and works smoothly. Of course, it doesnt support extensions or plug-ins by design, and its a little heavier than your normal Chrome install, but once its up and running you shouldnt have a problem actually using it. Youll also have to give up some of the conveniences you may be used to in order to protect your privacy, such as autofill, address saving, password saving, history and cache all of those elements are either never stored, or deleted when you close the browser.

Comodo is an internet security company that has been in the business of protecting data for decades. Comodo develops three web browsers, and each of them offers additional protection that you wont find in a standard download of Chrome or Firefox.

Comodo Dragon is a Chromium-based browser that was one of Comodos first browsers. It incorporates a number of Comodo-branded tools into the browsing experience, such as the companys own SSL validation, where every site you visit has its SSL certificate and identity validated by Comodo. Youll receive a notification to let you know everything is OK, or if Comodo thinks the site youre trying to visit is questionable.

If you allow it to, Comodo will route all of your browsing through its secure, encrypted DNS, so you leave fewer traces of your movements around the web. Comodo Dragon also blocks third-party tracking cookies, widgets and other site components from loading. Because its branded by Comodo, it will prompt you to use Comodos other security products as well to complement it, which is a little ironic if youre using a privacy-focused browser in order to not be sold to all the time. Its worth noting that Comodo says that Dragon will only run on Windows 7 and below (although we had no issues with it in Windows 8).

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The Best Privacy And Security-Focused Web Browsers

Tor Browser Bundle is a free and simple software that enables users to protect their online identity and maintain it anonymously from online attacks and traffic. Tor software prevents other users watching your Internet connection from learning what sites you visit. Besides, it doesnt let the sites you visit learn your physical location. One of the distinctive advantages of Tor Browser Bundle is that it allows you to access earlier blocked sites. Tor Browser Bundle can be installed on Windows, Mac OS X, or Linux without any additional software. As a matter of fact, it can run off a USB flash drive and is very self-sufficient.

Features and Capabilities:

Tor Browser Bundle works with a number of application including web browsers, instant messaging systems, remote access clients and other apps that use TCP protocol. Thousands of people from all the corners of the world use Tor Browser Bundle for various reasons: journalists and bloggers, law enforcement officials, military people, corporations, citizens of the countries with a repressive regime and just regular people.

Why is Tor Browser Bundle so popular on the web? Its been produced to make your life simpler. Now you dont need to worry about your digital track that you leave every time whilst surfing the Internet.

Take over control over the data you produce and download Tor Browser Bundle absolutely free of charge!

http://tor-browser.joydownload.com/ - Tor Browser is a product developed by The Tor Project. This site is not directly affiliated with The Tor Project. All trademarks, registered trademarks, product names and company names or logos mentioned herein are the property of their respective owners. Our download manager distributes the original unmodified software, obtained directly from The Tor Project website, and does not modify it in any way.

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In May, the Open Technology Fund commissioned iSEC Partners to study current and future hardening options for the Tor Browser. The Open Technology Fund is the primary funder of Tor Browser development, and it commissions security analysis and review for all of the projects that it funds as a standard practice. We worked with iSEC to define the scope of the engagement to focus on the following six main areas:

The complete report is available in the iSEC publications github repo. All tickets related to the report can be found using the tbb-isec-report keyword. General Tor Browser security tickets can be found using the tbb-security keyword.

The report had the following high-level findings and recommendations.

Due to our use of cross-compilation and non-standard toolchains in our reproducible build system, several hardening features have ended up disabled. We have known about the Windows issues prior to this report, and should have a fix for them soon. However, the MacOS issues are news to us, and appear to require that we build 64 bit versions of the Tor Browser for full support. The parent ticket for all basic hardening issues in Tor Browser is bug #10065.

iSEC recommended that we find a sponsor to fund a Pwn2Own reward for bugs specific to Tor Browser in a semi-hardened configuration. We are very interested in this idea and would love to talk with anyone willing to sponsor us in this competition, but we're not yet certain that our hardening options will have stabilized with enough lead time for the 2015 contest next March.

The Microsoft Enhanced Mitigation Experience Toolkit is an optional toolkit that Windows users can run to further harden Tor Browser against exploitation. We've created bug #12820 for this analysis.

PartitionAlloc is a memory allocator designed by Google specifically to mitigate common heap-based vulnerabilities by hardening free lists, creating partitioned allocation regions, and using guard pages to protect metadata and partitions. Its basic hardening features can be picked up by using it as a simple malloc replacement library (as ctmalloc). Bug #10281 tracks this work.

The iSEC vulnerability review found that the overwhelming majority of vulnerabilities to date in Firefox were use-after-free, followed closely by general heap corruption. In order to mitigate these vulnerabilities, we would need to make use of the heap partitioning features of PartitionAlloc to actually ensure that allocations are partitioned (for example, by using the existing tags from Firefox's about:memory). We will also investigate enabling assertions in limited areas of the codebase, such as the refcounting system, the JIT and the Javascript engine.

A large portion of the report was also focused on analyzing historical Firefox vulnerability data and other sources of large vulnerability surface for a planned "Security Slider" UI in Tor Browser.

The Security Slider was first suggested by Roger Dingledine as a way to make it easy for users to trade off between functionality and security, gradually disabling features ranked by both vulnerability count and web prevalence/usability impact.

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tor browser | The Tor Blog

6 Screenshots

The application's main attempt is to put a web browser at your disposal with the help of which you can both enjoy a friendly interface and keep your system safe. All available features come in the form of a custom-made version of Mozilla Firefox, which is not necessarily bad because it lets you quickly accommodate.

One of the key features in keeping your data safe the integrated HTTPS Everywhere addon, which basically encrypts communication between your computer and various web pages you access. This can easily be configured to allow or restrict access to specific content.

Before being able to fully enjoy a safe browsing experience, the application requires you to select connection type. You can opt for a standard connection, which works in most cases, or configure settings in if you computer uses a proxy or goes through a firewall in order to reach the information superhighway.

Most available options are similar to the one you find in Firefox, with a few additions. The Torbutton puts several settings at your disposal, such as the possibility to fully configure connection settings, handle cookie protection, or even choose a new identity for enhanced security.

Taking everything into consideration, we can say that Tor Browser Bundle comes equipped with all necessary tools you need in order to stay safe while online. It can be used by beginners and experts alike, due to the various advanced settings that are not mandatory in order for the application to properly offer its services.

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Tor Browser Download - Softpedia

Tor is having a bit of a crisis, as it's become increasingly clear that the wildly popular network isn't the internet invisibility cloak it was once thought to be. Don't panic. It's not perfect, but it's still the best we've got.

The Tor network is the most popular way to get online anonymously, and that's not going to change in time in the short term. But the service has been rollicked in recent months. A wave of busts that brought down 17 illegal enterprises hidden behind the Tor network last month illustrated that though Tor is largely safe, it's more vulnerable than the average user wants to admit.

The service has also been attacked by reporters who feel the system is compromised because it was originally developed by the U.S. Navy, and because some of the developers behind it have worked with the government before. In a post on Pando, Quinn Norton does a nice job dispelling the myths surrounding Tor's federal ties, which basically comes down to: No level of government interaction can undermine the basic math of encryption.

And Tor's encryption is solid. For those unfamiliar, Tor is software that conceals the location of users and web servers by firing traffic through a global network of relays. It's an ingenious system that for years facilitated basically untraceable internet activity, both illegal and otherwise. It's been used to traffic weapons and drugs, circumvent censorship, and conceal the identity of whistleblowers like Edward Snowden. If you're not using Tor, your location and activity is constantly being tracked. With Tor, the pitch goes, you're basically invisible.

That sense of security was undermined when an international coalition of agencies including the FBI, Immigration and Customs Enforcement, and Department of Homeland Security (in the U.S.) and Europol and Eurojust (in Europe, duh), laid the smack down. The highest profile bust brought down the drug marketplace Silk Road 2.0 and its alleged proprietor Blake Benthall, but it included a total of 17 people and 27 sites, all of whom had put misguided faith in Tor's ability to mask their online dealings.

But how did it happen? Did the agencies crack the anonymous network? A blog post on the Tor Project's website a few days after the attack was quite frank about the organization's ignorance:

So we are left asking "How did they locate the hidden services?". We don't know. In liberal democracies, we should expect that when the time comes to prosecute some of the seventeen people who have been arrested, the police would have to explain to the judge how the suspects came to be suspects, and that as a side benefit of the operation of justice, Tor could learn if there are security flaws in hidden services or other critical internet-facing services.

The post went on to outline myriad ways that law enforcement might have tracked down the operators of illegal websites and the location of their servers. One-by-one, Tor listed vulnerabilities that might have been exploited. They range from technical ways to exploit the code base to unmask users to capturing relays and analyzing their traffic, or even infiltrating the organizations that were running the sites.

What's most striking about Tor's reaction is that the people in charge are completely aware of its vulnerability. The Tor Project operates much like other open source efforts you're probably more familiar with, like Mozilla's Firefox browser or Google's Android operating system. This is admittedly an oversimplification that will horrify developers, but the point is that like those projects Tor evolves thanks to the contributions of an open community. (In fact, the Tor browser is based on Firefoxand it's where it gets one of its known bugs.)

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Tor Is Still Safe

A little more than 16 months ago, word emerged that the FBI exploited a recently patched Firefox vulnerability to unmask Tor users visiting a notorious child pornography site. It turns out that the feds had waged an even broader uncloaking campaign a year earlier by using a long-abandoned part of the open source Metasploit exploit framework to identify Tor-using suspects.

The Decloaking Engine went live in 2006 and used five separate methods to break anonymization systems. One method was an Adobe Flash application that initiated a direct connection with the end user, bypassing Tor protections and giving up the user's IP address. Tor Project officials have long been aware of the vulnerability and strenuously advise against installing Flash. According to Wired:

The decloaking demonstration eventually was rendered obsolete by a nearly idiot-proof version of the Tor client called the Tor Browser Bundle, which made security blunders more difficult. By 2011, Moore says virtually everyone visiting the Metasploit decloaking site was passing the anonymity test, so he retired the service. But when the bureau obtained its Operation Torpedo warrants the following year, it chose Moores Flash code as its network investigative techniquethe FBIs lingo for a court-approved spyware deployment.

Torpedo unfolded when the FBI seized control of a trio of Dark Net child porn sites based in Nebraska. Armed with a special search warrant crafted by Justice Department lawyers in Washington DC, the FBI used the sites to deliver the Flash application to visitors browsers, tricking some of them into identifying their real IP address to an FBI server. The operation identified 25 users in the US and an unknown number abroad.

Gross learned from prosecutors that the FBI used the Decloaking Engine for the attack they even provided a link to the code on Archive.org. Compared to other FBI spyware deployments, the Decloaking Engine was pretty mild. In other cases, the FBI has, with court approval, used malware to covertly access a targets files, location, web history and webcam. But Operation Torpedo is notable in one way. Its the first timethat we know ofthat the FBI deployed such code broadly against every visitor to a website, instead of targeting a particular suspect.

The tactic is a direct response to the growing popularity of Tor and, in particular, an explosion in so-called hidden servicesspecial websites, with addresses ending in .onion, that can be reached only over the Tor network.

Hidden services are a mainstay of the nefarious activities carried out on the so-called Dark Net, the home of drug markets, child porn, and other criminal activity. But theyre also used by organizations that want to evade surveillance or censorship for legitimate reasons, like human rights groups, journalists, and, as of October, even Facebook.

A big problem with hidden service, from a law enforcement perspective, is that when the feds track down and seize the servers, they find that the web server logs are useless to them. With a conventional crime site, those logs typically provide a handy list of Internet IP addresses for everyone using the site quickly leveraging one bust into a cascade of dozens, or even hundreds. But over Tor, every incoming connection traces back only as far as the nearest Tor nodea dead end.

Taken together, Operation Torpedo and the campaign used last year to identify Tor-using child porn suspects demonstrate the determination feds show in bypassing Tor protections. They also underscore the feds' rapidly growing skill. Whereas Operation Torpedo abused a six-year-old weakness that ensnared only people who ignored strenuously repeated advice, the latter operation exploited a vulnerability that had only recently been patched in Firefox.

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Feds used Adobe Flash to identify Tor users visiting child porn sites

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