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Wednesday, August 27, 2025

How a cybersecurity researcher befriended, then doxed, the leader of LockBit ransomware gang

In the world of cybersecurity, trust is a valuable commodity. It takes years of hard work and dedication to build a reputation in the industry, but it can all come crashing down with one wrong move. Unfortunately, this was the case for Jon DiMaggio, a former cybersecurity researcher who used deceit and manipulation to infiltrate the notorious ransomware group, LockBit.

It all began when LockBit first emerged in 2021 as a major threat to businesses and organizations worldwide. The group was responsible for several high-profile attacks, including the one on the Colonial Pipeline, which caused widespread panic and disruption. As a result, LockBit quickly became one of the most feared and sought-after ransomware groups in the world.

But where there is fear, there is also opportunity. And Jon DiMaggio saw this as his chance to make a name for himself in the cybersecurity world. He decided to take a bold step and infiltrate LockBit from the inside.

DiMaggio’s first move was to create multiple sockpuppet accounts, which are fake online identities used to deceive others. He used these accounts to gain the trust of LockBit’s alleged admin, Dmitry Khoroshev. With his sockpuppets, DiMaggio was able to gather valuable information about the group’s operations and tactics.

But DiMaggio didn’t stop there. He then took an even more daring step and revealed his true identity to Khoroshev, claiming to be a disillusioned hacker looking to join forces with LockBit. To DiMaggio’s surprise, Khoroshev welcomed him with open arms, seeing him as a valuable asset to the group.

This was just the beginning of DiMaggio’s elaborate plan to gain the trust of LockBit’s members. He spent months building relationships and gathering information, all while keeping his true intentions hidden. DiMaggio’s ultimate goal was to gather enough evidence to take down LockBit and bring its members to justice.

And his plan worked. In 2024, DiMaggio’s evidence was crucial in the arrest and prosecution of several LockBit members, including Khoroshev. The group’s operations were disrupted, and its members faced severe consequences for their actions. This was a major win for the cybersecurity world and a testament to DiMaggio’s determination and bravery.

However, DiMaggio’s actions did not go unnoticed. Many in the cybersecurity community were shocked and disappointed to learn that one of their own had used deceit and manipulation to infiltrate a criminal group. Some even questioned the ethics of his methods.

But despite the controversy surrounding his actions, one thing is clear – Jon DiMaggio’s bravery and determination played a crucial role in taking down one of the most notorious ransomware groups in history. His actions not only helped bring justice to the victims of LockBit’s attacks but also served as a warning to other cybercriminals that they are not safe from the long arm of the law.

DiMaggio’s story serves as a reminder that trust is a valuable commodity in the cybersecurity world, and it should never be taken for granted. It takes years of hard work and dedication to build a reputation, but it only takes one wrong move to destroy it. As cybersecurity professionals, it is our responsibility to uphold the highest ethical standards and use our skills for the greater good.

In conclusion, Jon DiMaggio’s actions may have been controversial, but they ultimately served a greater purpose. He risked his reputation and safety to bring down a criminal group and make the internet a safer place for all. Let us all learn from his bravery and continue to work towards a more secure and trustworthy cyberspace.

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