What Is the Dark Web and Why Should You Worry?
You've probably heard of the dark web in news, series, or movies. But do you really know what it is, how it works, and why the data of millions of people is bought and sold there every day?
The internet has layers
To understand the dark web, first you have to understand the three layers of the internet:
- Surface web — What you see on Google: indexed pages, social networks, online stores. It represents barely 4-5% of the entire internet.
- Deep web — Unindexed content: private databases, corporate intranets, banking systems. It's not illegal, it's simply not public.
- Dark web — A portion of the deep web accessible only through special browsers like Tor. This is where illegal markets operate.
What is sold on the dark web?
Cybercriminals trade all types of stolen data:
| Data | Approximate price | |------|------------------| | Email credentials | €1–10 | | Credit card data | €5–50 | | Online bank account | €50–200 | | Complete medical history | €100–1,000 | | Complete identity (fullz) | €30–150 | | Scanned passport | €15–60 |
Data is sold in batches. A lot of 100,000 emails with passwords can cost as little as 50 euros.
How do your data get to the dark web?
The chain is simpler than you think:
- A company suffers a breach — A hacker accesses its database.
- The data is extracted — Emails, passwords, personal data.
- They are published or sold — Sometimes for free on forums, sometimes on dark web markets.
- Other attackers use them — To access your accounts, do phishing, or impersonate your identity.
This entire process can occur within hours of the original breach.
Why should you worry?
Even if you've never visited the dark web, your data could be there if:
- You've signed up for any online service that has suffered a breach
- You've used the same password on several sites
- Your email appears in any public leak
The problem isn't just that they have your LinkedIn password from 2012. It's that if you use that same password for your email or bank, the attacker can access everything.
How to protect yourself?
- Check your exposure — Use SecuryBlack Breach Scanner to find out if your email is in leaked databases.
- Unique passwords — Never reuse passwords. Use a password manager.
- Two-factor authentication (2FA) — Even if someone has your password, they won't be able to access without the second factor.
- Continuous monitoring — Enable alerts to know instantly if your data appears in a new breach.
The dark web isn't just for criminals
It's important to understand that the dark web also has legitimate uses: journalists in countries with censorship, human rights activists, and private communications. The problem isn't the technology, but the use it's given.
What is a fact: your data has economic value, and there are people willing to pay for it. Protecting your credentials isn't paranoia, it's common sense.
Want to know if your credentials are exposed? Check for free with SecuryBlack.