With this new blog series, I intend to examine several of the most significant hackers of the 21st century. The goal is to draw lessons from their experiences and help you develop a wider understanding of your chosen discipline.

The first profile focuses on the unusual and controversial case of Jeremy Hammond.

Jeremy Hammond is a hacker who identifies as an anarchist-communist and argues that capitalism must be dismantled to achieve a free and egalitarian society. He is also known as the founder of the computer security training platform, www.hackthissite.com.

Raised in suburban Chicago, Hammond was regarded as an exceptional student. He began writing computer programs at the age of eight and earned first place in a science competition. After enrolling at the University of Illinois at Chicago, he identified and exploited a vulnerability in the computer science department’s website. Although he later offered to repair the flaw, the university barred him from returning for his second year. “This episode highlights the substantial risks involved in accessing systems without explicit authorization, even when the intent is helpful.”

Hammond is best known for the 2011 breach of Stratfor, a private intelligence firm often described as a private counterpart to the CIA. Stratfor monitors geopolitical developments and provides analysis to corporate clients and elements of the U.S. security community. During the hack, Hammond obtained more than 60,000 credit card numbers and downloaded approximately five million emails. These communications allegedly revealed questionable activities by Stratfor, including surveillance of WikiLeaks and Anonymous. The disclosures proved highly embarrassing for both Stratfor and some of its clients, and a portion of the emails was later published by Julian Assange’s WikiLeaks.

In carrying out the Stratfor hack, Hammond interacted with Hector Xavier Monsegur, known online as “Sabu,” who was acting as an FBI informant. While cooperating with federal authorities, Sabu encouraged Hammond to target multiple websites. As a result, many observers concluded that certain offenses for which Hammond was convicted may have been instigated or facilitated by the FBI. Hammond himself asserted that the breaches would not have been possible without the informant’s assistance.

Hammond was arrested on March 5, 2012, and denied bail after the presiding judge determined that he posed a danger to national security. More than a year later, in May 2013, he pleaded guilty to violating the Computer Fraud and Abuse Act (CFAA), a 1986 statute that underpins most federal prosecutions of hacking-related offenses in the United States.

Another controversial aspect of the case concerned the presiding judge, Loretta A. Preska. She was married to Thomas Kavaler, whose email had been among those disclosed in the Stratfor breach. Kavaler had professional ties to Stratfor and its clients. This connection suggested that the judge had a personal interest in the case and, according to critics, should have recused herself in favor of an impartial jurist. Hammond’s legal team formally sought her removal, but she declined to step aside.

Ultimately, Hammond was sentenced to ten years’ imprisonment followed by three years of supervised release.

Summary and Key Takeaways

Jeremy Hammond’s case offers several important lessons.

First, unauthorized access to any system carries serious legal consequences, regardless of intent.

Second, involvement with intelligence agencies or firms connected to them, such as Stratfor, can result in severe repercussions once identified.

Third, caution is essential in online associations. Hammond placed trust in Sabu, who encouraged and assisted him in targeting Stratfor and other websites while simultaneously cooperating with the FBI. Critics have characterized this situation as a classic example of entrapment.

Fourth, in the United States and some other jurisdictions, individuals may be detained before trial. Hammond was held without bail, meaning no amount of bail could secure his temporary release to prepare his defense. Even when bail is granted, the required sums—often ranging from $100,000 to $500,000 in comparable cases—can be unattainable for most defendants. Such conditions may exert significant pressure on individuals to enter guilty pleas, irrespective of actual culpability.

Fifth, prosecutors and judges may have interests that extend beyond the immediate case. In the United States, prosecutors are political appointees and may harbor ambitions for higher office, such as congressional, attorney general, or senatorial positions. High-profile prosecutions can elevate public visibility and advance such aspirations. Additionally, concerns about judicial impartiality arose in Hammond’s case due to the presiding judge’s personal connections, raising questions about whether recusal would have been appropriate.

The full reality of this case may remain unknown unless Hammond himself chooses to provide further details. Given his experience within the U.S. judicial system, it would be understandable if he opted to remain silent.