Ex-Canadian government employee admits to being a member of the Russian cybercrime gang NetWalker

A former Canadian government IT worker admitted to being a high-level member of the Russian cybercrime group NetWalker.

A former Canadian government employee, Sebastien Vachon-Desjardins, pleaded guilty in the U.S. to charges related to his involvement with the Russian cybercrime group NetWalker.

In March, the man was extradited to the United States to face charges for dozens of ransomware attacks resulting in the payment of tens of millions of dollars in ransoms.

According to DoJ, US authorities charged him with conspiracy to commit computer fraud and wire fraud, intentional damage to a protected computer, and transmitting a demand in relation to damaging a protected computer arising from his alleged participation in the NetWalker gang. 

In January, a joint operation of U.S. and EU law enforcement authorities allowed the seizure of the leak sites used by NetWalker ransomware operators. Law enforcement authorities also charged the Canadian national for its role in the NetWalker ransomware operations.

The group has been active since 2019, the NetWalker ransomware has been offered with the Ransomware-as-a-Service (RaaS) model.

The list of victims of the group is long, it includes Pakistan’s largest private power company K-ElectricArgentina’s official immigration agency, Dirección Nacional de Migraciones, and the University of California San Francisco (UCSF), the latter paid a $1.14 million ransom to recover its files.

In August 2020, the FBI has issued a security alert about Netwalker ransomware attacks targeting U.S. and foreign government organizations.

NetWalker is also believed to have been responsible for compromising the network of the University of California San Francisco (UCSF), which paid over $1 million to recover from the incident. In July, the FBI warned of NetWalker attacks targeting government organizations.

The Department of Justice also charged against the Canadian national Sebastien Vachon-Desjardins in relation to NetWalker ransomware attacks, he is alleged to have obtained at least over $27.6 million as a result of the offenses charged in the indictment. The law enforcement also seized $454,530.19 in cryptocurrency obtained from ransom payments.

In February 2022, the Ontario Court of Justice sentenced the man to six years and eight months in prison prior to his extradition.

“Between May 2020 and January 2021, the Defendant victimized 17 Canadian entities and others throughout the world by breaching private computer networks and systems, hi-jacking their data, holding the stolen data for ransom, and distributing stolen data when ransoms were not paid. The Defendant excelled at what he did. Between 10-15 unknown individuals hired the Defendant to teach them his methods.” read the reasons for the sentence. “Some of these activities benefitted those interested in securing computer networks from these types of attacks. Some of the Defendant’s students were likely other cyber threat actors.”

The man could face 10 years in prison.

Follow me on Twitter: @securityaffairs and Facebook

[adrotate banner=”9″][adrotate banner=”12″]

Pierluigi Paganini

(SecurityAffairs – hacking, Ex-Canadian government employee admits to be a member of the Russian cybercrime gang NetWalkerNetWalker)

[adrotate banner=”5″]

[adrotate banner=”13″]

Pierluigi Paganini

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.

Recent Posts

Texas Department of Transportation (TxDOT) data breach exposes 300,000 crash reports

Hackers breached Texas DOT (TxDOT), stealing 300,000 crash reports with personal data from its Crash…

4 hours ago

SAP June 2025 Security Patch Day fixed critical NetWeaver bug

SAP fixed a critical NetWeaver flaw that let attackers bypass authorization and escalate privileges. Patch…

7 hours ago

U.S. CISA adds RoundCube Webmail and Erlang Erlang/OTP SSH server flaws to its Known Exploited Vulnerabilities catalog

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds RoundCube Webmail and Erlang Erlang/OTP SSH server flaws…

11 hours ago

Mirai botnets exploit Wazuh RCE, Akamai warned

Mirai botnets are exploiting CVE-2025-24016, a critical remote code execution flaw in Wazuh servers, Akamai…

14 hours ago

China-linked threat actor targeted +70 orgs worldwide, SentinelOne warns

China-linked threat actor targeted over 70 global organizations, including governments and media, in cyber-espionage attacks…

17 hours ago

DOJ moves to seize $7.74M in crypto linked to North Korean IT worker scam

US seeks to seize $7.74M in crypto linked to North Korean fake IT worker schemes,…

1 day ago