The term “dark web” sounds ominous, and there’s a reason for that. The dark web is a part of the internet and made up of hidden sites that you can’t find through conventional web browsers. Instead, you must rely on browsers and search engines designed specifically to unearth these hidden sites.

There’s also plenty of secrecy surrounding this corner of the internet. Sites on the dark web use encryption software so that their visitors and owners can remain anonymous and hide their locations. It’s why the dark web is home to so much illegal activity. If you tap into the dark web, you’ll find everything from illegal drug and gun sales to illicit pornography and stolen credit card and Social Security numbers.

Dissidents who fear political prosecution from their governments might use the dark web to communicate with each other. You might visit the dark web to get medical advice that you want to make sure remains anonymous. Sometimes journalists use the dark web so that they or their sources can remain anonymous.

Here’s a guide that will help you learn about the dark web, the sites that populate it and how you can visit it. Be careful, though: The dark web can be dangerous. And if you want to explore it for illegal activities, you could face prosecution and jail time. Depending on where you visit, and what you download, you could also be exposed to scammers and cybercriminals who could attempt to infect your devices with malware or steal your personal information.

What’s on the dark web?

The dark web has earned some of its seedy reputation. A 2016 report from researchers Daniel Moore and Thomas Rid, of King’s College in London, looked at 5,205 live sites on the dark web and found that 2,723 contained illicit content.

What does this mean? The report found that visitors to the dark web can buy and sell guns, drugs, counterfeit money, other people’s Netflix accounts, credit card numbers, and more. You can also find software that you can use to access other people’s computers.

But, again, the dark web isn’t just for criminals. You’ll also come across online versions of books that have long been out of print, a collection of political reporting from mainstream news sites, and several sites run by whistleblowers looking to expose corporate and government corruption.

Drugs

The dark web might be most notable for providing black markets that visitors can use to buy illicit drugs. Silk Road is a good example. This site was famed for the drugs visitors could find on it. The FBI shut down Silk Road in 2013. A new version of the site came online later that year but was also shut down.

The founder of the site, Ross Ulbricht, who went under the false name Dread Pirate Roberts, was arrested in late 2014 and sentenced to life in prison without the possibility of parole. AlphaBay was another popular online marketplace filled with illegal products. It was shut down in 2017.

Passwords and usernames for streaming services

If you don’t mind stealing, you can find the passwords to a host of streaming services — both those offering mainstream movies and those hosting pornography — on the dark web. Cybercriminals sell these passwords to those who want to skimp out on paying the monthly fees for streaming subscriptions.

Passwords and usernames available typically include those for services such as Netflix, Hulu, HBO, Amazon Prime, and other streaming services.

Credit card and debit card numbers

Here’s a scary one: According to a report by Gemini Advisory, 115 million stolen debit and credit card numbers were posted to the dark web in 2020.

Criminals sell these stolen numbers to other thieves. Armed with these numbers, criminals can make unauthorized purchases online using your information. And, yes, you can dispute these purchases, but who knows how much damage these thieves can do before you catch these illegal purchases?

Bank account numbers and passwords

If thieves sell credit and debit card numbers on the dark web, you can bet that they’ll sell bank account numbers and passwords to online savings and checking accounts, too.

According to a report by cybersecurity firm Digital Shadows, more than 15 billion pieces of financial account details are now being sold in online marketplaces. According to the report, banking and financial accounts made up about a quarter of these online listings.

Again, criminals can do a lot of damage after buying your bank account details. They can use your account to make purchases and drain your savings or checking accounts quickly.

Social Security numbers

Criminals can also find Social Security numbers — along with other personal information like people’s birthdates, addresses, and phone numbers — for sale on the Dark Web.

Criminals can use your Social Security number to help steal your identity. That can lead to serious financial pain, as these thieves can use your identity to apply for credit cards in your name, apply for mortgage loans, and even file your income taxes in the hope of stealing your refund.

Difference between dark web and deep web

It’s easy to confuse the dark web with the deep web. But they aren’t the same.

The deep web is also hidden, in a way. But it’s home to benign sites, such as people’s password-protected email accounts, the intranets run by businesses, the online bank account pages of consumers, government databases, and private sites that require users to type in a log-in name and password.

Think of the dark web, then, as a small subset of the deep web that has become a haven for illegal activity.

Is it illegal to access the dark web?

Surfing the dark web isn’t illegal. Buying illegal drugs or firearms from a site on the dark web or downloading child pornography? That is illegal.

For instance, in the summer of 2018, the U.S. Department of Justice, U.S. Department of Homeland Security, U.S. Secret Service, Drug Enforcement Administration, and the U.S. Postal Inspection Service teamed up to arrest more than 35 dark web vendors of drugs, weapons, and other illegal products. The agencies also seized $23.6 million in illegal guns, drugs, gold, and Bitcoin.