Freenet (Hyphanet) and Internet Crime Investigations

Freenet is a peer-to-peer network designed to let people publish and retrieve information anonymously. In 2023 the original project was renamed Hyphanet, but it is still widely called Freenet, including in court decisions. Courts have also addressed how law enforcement investigates activity on the network. This page gives general background on Freenet and how investigations involving it often happen.

Background and History of Freenet (Hyphanet)

Freenet was conceived by Ian Clarke, based on a 1999 university project, and was first released in 2000. It was built to resist censorship. In 2023 the original software was renamed Hyphanet, while the Freenet name moved to a separate new project led by Clarke. References to “Freenet” in older court cases generally mean the software now called Hyphanet.

Freenet (Hyphanet) Features and Services

Users who install Freenet contribute part of their hard drive to a shared, encrypted data store. Files are split into encrypted blocks spread across many computers and retrieved with a unique key. Freenet has no built-in search function, so users find keys on message boards and “freesites” inside the network. Requests are passed from peer to peer, and the design attempts to hide whether a computer is the original requester or is simply relaying a neighbor’s request. Freenet’s own materials warn that it does not hide a computer’s IP address from its peers.

How People Use Freenet (Hyphanet)

Freenet, now Hyphanet, was created to support free expression and the free flow of information. Its developers describe it as a way to share files, publish and browse “freesites,” and chat on forums without fear of censorship, which can matter to people living under governments that restrict speech, as well as to journalists and privacy advocates. Hyphanet is free, open-source software developed by volunteers.

How Many People Use Freenet (Hyphanet)?

We did not locate a reliable count of Freenet or Hyphanet users. It is generally understood to be a small network compared with mainstream file-sharing services.

How Investigations Involving Freenet (Hyphanet) Often Begin

Peer-to-peer investigations work differently from investigations of social media or messaging apps. There is usually no company in the middle that detects files and reports them. Instead, law enforcement officers often connect to the network themselves using software built for investigations, look for users offering files whose hash values match known illegal material, record the IP address of the computer sharing the files, and sometimes download files directly from that single source. The officer then typically sends a subpoena to the internet provider for that IP address to learn the subscriber’s name and address, and seeks a search warrant for the home. The firm’s article on P2P investigations explains this process in more detail.

Freenet investigations have a particular twist. A 2026 federal appeals court opinion described law enforcement using a modified version of the Freenet software that records certain information about requests passing through government-run peers, along with a statistical formula, drawn from a published study, intended to estimate whether a neighboring computer was the original requester rather than a relay. Whether that kind of method is reliable in a particular case is a question that may be challenged.

Where the Evidence Comes From in Peer-to-Peer Cases

There is no Freenet company that keeps account records. Evidence typically comes from the investigators’ logs of requests, the internet provider’s subscriber records for the IP address, and what is found during a search. Because requests in these cases can be months old by the time a search warrant is sought, questions about timing and whether evidence would still be present may arise.

Connecting an IP Address to a Person

In peer-to-peer cases, the internet subscriber whose name comes back on a subpoena is not necessarily the person who used the file-sharing software. Households share connections, Wi-Fi can be used by guests or neighbors, and some software runs in the background and shares files automatically. Questions about whether files were actually viewed, whether a person knew a program was sharing them, and how investigative software recorded and verified a download can all matter. See also questioning the biography of a digital file.

Examples From Reported Cases

The examples below are drawn from public announcements and news reports. They are described generally and without names. Charges are only accusations, and anyone charged is presumed innocent unless proven guilty in court. These summaries are not a prediction of how any other case will turn out.

• In Virginia, an undercover investigation that began in 2022 into a user requesting illegal files on Freenet led to a search of a man’s home in 2024. He was convicted after a bench trial in 2026.
• In 2026, a federal appeals court reviewing a Massachusetts case upheld a search warrant that relied on Freenet requests investigators had recorded in 2021 and attributed to a home IP address using the statistical method described above. The search took place about nine months after the requests. The defendant had entered a conditional guilty plea that preserved his right to appeal.

Related Articles on InternetCrime.com

• Platform Investigations: all platforms
• Peer-to-Peer (P2P) Investigations
• Child Pornography Defense
• Possession Charges
• Questioning the Biography of a Digital File
• When the Government Fails to Preserve Digital Evidence
• Police Seized My Computer: What Now?

If You Are Under Investigation Involving Freenet (Hyphanet)

If police have contacted you, if a search warrant has been served, or if you believe an investigation involving a Freenet (Hyphanet) account may be underway, it is important to get legal advice before taking any action on your own. Attorney Ron Frey generally advises speaking with an attorney before answering questions or agreeing to a search. Whether a person may be required to provide a password or unlock a device depends on the circumstances, the jurisdiction, and any search warrant or court order involved, so that decision should be made with an attorney’s advice (see should I provide my password to the police or FBI?).

You have the right to remain silent. Anyone accused of a crime is presumed innocent unless proven guilty in court. Laws change and vary from state to state and between state and federal court, and the way they apply depends on the specific facts. Please don’t rely on the internet or on AI tools to evaluate your situation. Every case is different, and contacting an attorney is a priority to get tailored advice.

Attorney Ron Frey of The Frey Law Firm, LLC has been practicing law for over two decades and represents people nationally in internet and computer crime investigations and charges. He is a conference speaker and published author.

Attorney Ron Frey Is Available for a Free Initial Confidential Consultation: Call or Text (844) 766-3739. In Florida, call (813) 775-2276. You can also reach the firm through the contact page.

References

• U.S. Department of Justice, Office of Public Affairs, Virginia Freenet case (July 2026)
• U.S. Court of Appeals for the First Circuit, opinion (June 2026)
• “Statistical Detection of Downloaders in Freenet,” IWPE 2017 (study cited by the court)
• Hyphanet, About
• Wikipedia, “Hyphanet” (background)

Important: This page provides general information only. It is not legal advice, and it is not a complete or current statement of the law or of any company’s policies. Laws, court decisions, and platform practices change, and their effect depends on the facts of each case and on how courts interpret them. User figures and report counts come from the sources listed and may since have changed. Platform names and logos are trademarks of their owners and are used only to identify the services discussed; The Frey Law Firm, LLC is not affiliated with or endorsed by any of these companies. Please don’t rely on this page, or on any other information online, to make decisions about your situation. Talk with a lawyer. Reading this page or contacting The Frey Law Firm, LLC does not create an attorney-client relationship. Last reviewed: October 26, 2026.