Ensure your passwords feature a diverse mix of characters. Avoid using your pet’s name and, crucially, never recycle your passwords. While we’re all aware of the guidelines for keeping our digital credentials safe, it’s easy to forget them.

The trade of stolen personal data is booming on the dark web, lying beyond the regular internet and accessible only through specific software. Tor was initially developed by the US Intelligence Agency for confidential communications. Not everything there is sinister; for instance, BBC News maintains dark web platforms for individuals facing oppressive surveillance.

To delve deeper, I consulted Rory Hattin, an ethical hacker from a firm dedicated to legally infiltrating companies to test security measures. He expressed a “remarkably slim” chance that my personal data hasn’t been compromised. Having reported on technology for years, I understand how prevalent data breaches are, but realizing I could be affected was a sobering wake-up call.

Hattin introduced me to a website called Have I Been Pwned, which consolidates usernames and passwords that have been leaked across the dark web into a searchable database. Upon entering my email address, I was alarmed to discover that I had been involved in 29 data breaches.

The most recent breach occurred in 2024 during an attack on internet archives, where my email and password were exposed. My information was also part of 122 gigabytes of user data scraped from various Telegram channels, including a database known as NAZ.API originally shared on hacker forums. Other breaches involved sensitive information such as email addresses, job titles, phone numbers, IP addresses, password hints, and birthdates from major platforms like Adobe, Dropbox, and LinkedIn.

In theory, these leaks might seem limited in value. For instance, if LinkedIn is hacked, and your username and password are compromised, your Facebook account remains unaffected—unless, of course, you’re among the over 60% who reuse the same password repeatedly. In such cases, hackers can exploit your credentials across various sites. Hattin warns, “You’re in serious trouble.”

This includes online shopping accounts with saved payment methods, PayPal accounts, or cryptocurrency wallets. Gaining access to one account could allow intruders to infiltrate others, with email accounts acting as a treasure trove. Once they access an email account, they can reset passwords on multiple platforms, jeopardizing everything from your utility accounts to online banking. Additionally, hackers can misuse access to social media and email to launch scams against friends and family, presenting believable emergencies that require money transfers. The fact that these messages come from real accounts lends them an unsettling credibility, often leading to unfortunate outcomes.

Compounding the problem, businesses that experience data breaches are sometimes slow to inform customers, leaving them exposed for extended periods. Hattin noted that in his previous role with a client, he observed ransomware incidents being treated as mere inconveniences. Companies often encrypt victim data and demand ransom, viewing such attacks as merely part of doing business.

“These companies face breaches two or three times a year,” Hattin stated. “They set aside funds for when things go awry. They pay the ransom and carry on with their operations. This cycle persists globally.”

As I grappled with the exposure of my personal data, I was struck by its resemblance to the mechanically processed meat found in chicken nuggets. Hattin explained that premium personal data is acquired when sophisticated hackers breach a website and collect fresh data to sell. Once the initial buyers extract what they need, the data can be resold multiple times. The most valuable data gets distributed, while the remainder may be offered for free on hacker forums, Telegram groups, or other obscure parts of the internet.

Hattin introduced me to a paid service named Dehashed, illustrating how the data supply chain operates. This service is named after a common security measure that “hashes” passwords to obscure them; dehashing reverses this process. My worst fears were confirmed when I discovered that at least one of the passwords associated with my email address was current. In theory, nothing was preventing a hacker from accessing at least one of my online accounts.

Dehashed costs $219.99 per year and claims to cater to “law enforcement agencies and Fortune 500 firms.” I reached out to the company to inquire whether they were concerned that tools designed to match leaked data might also aid hackers and cybersecurity professionals, but received no response.

I felt compelled to explore the dark web further. I spoke with Anish Chauhan from Equilibrium Security Services, who showcased findings from his team’s tailored software. They identified 24 passwords connected to my online accounts.

“Users might think, ‘I have a 200-character password; no one will crack it,'” Chauhan explained. “But if they’re using it across multiple sites, it could eventually be exploited, making it irrelevant. Unfortunately, as humans, we often choose the path of least resistance.”

Chauhan suggested a straightforward solution you’ve likely heard before: use unique passwords for each account. Given how widely my information has been circulated, the importance of this advice is painfully clear.

Fortunately, numerous tools exist to simplify this process. Most modern devices and internet browsers include password managers that generate strong, random passwords and remember them for you. If you’re concerned about your passwords already being compromised, it may be worth checking services like Have I Been Pwned or investing in more comprehensive tools that monitor the darker regions of the internet for leaks.

In recent years, I’ve relied on a password manager to create robust passwords and keep them organized. However, I noticed that some long-standing accounts have been neglected, housing old and breached logins. In light of this revelation, I plan to update my credentials before this article goes live.

That said, changing passwords isn’t something I do frequently. It’s understandable why many take shortcuts, overwhelmed by constant demands to create new login information. I’m certainly not the only one.

“I’m quite tech-savvy, yet I hardly change my passwords,” Hattin disclosed. “For work, I do, but in my personal life, I tend to be a bit lazy.”