A pair of young men were sentenced to 66 months in jail for committing a cyberattack on the Transport for London that brought the network’s operations to a standstill in 2024, the United Kingdom’s National Crime Agency said Thursday.

Thalha Jubair and Owen Flowers were arrested at their homes in September 2025, barely a year after the attack, and pleaded guilty last month just as their trials were set to begin. Flowers was previously arrested in connection with the attack in September, but was released after questioning by officers.

Jubair and Flowers were leading members and highly involved in Scattered Spider, a nebulous hacker subset of The Com, according to researchers. The 20-year-old Jubair was a prolific cybercriminal and core member of the unbound collective. 

U.S. authorities last year accused Jubair of direct, prominent involvement in at least 120 cyberattacks, including extortion of 47 U.S.-based organizations and the January 2025 attack on the federal court system. 

Officials said they traced a combined total of at least $89.5 million in cryptocurrency, at the time of payments, to Bitcoin addresses and servers controlled by Jubair. Two financial services firms paid Jubair $25 million and $36.2 million, respectively, in Bitcoin between June and November 2023, according to an unsealed criminal complaint against Jubair. 

At the time of Jubair’s arrest, “he was one of the four principal people that we associated with Scattered Spider,” and one of the two most core players, Adam Meyers, senior vice president of counter adversary operations at CrowdStrike, told CyberScoop. 

Jubair and Owens had significant resources and support, and “victim payments were reinvested back into the enterprise,” said Allison Nixon, chief research officer at Unit 221B. 

The lasting impact of Jubair and Owens’ capture and imprisonment remains hazy.

U.K. authorities insist Jubair and Owens’ arrests and punishment “effectively halted the group’s criminal activity,” yet they added that other cybercriminals continue to use the Scattered Spider brand in more recent attacks. 

Thursday’s announcement “represents a significant step in holding accountable two members of Scattered Spider, a group that has repeatedly relied on data extortion, SIM-swap attacks, and other social engineering techniques to infiltrate networks and undermine critical services,” Brett Leatherman, assistant director of the FBI Cyber Division, said in a statement. 

The FBI also noted, in a LinkedIn post, that members of Scattered Spider “continue to victimize organizations around the world and cause significant financial and operational harm.”

When Owens, now 18, was first arrested for the Transport for London attack in 2024, investigators said he was “in the process of hacking the systems of U.S. health care companies SSM Health Care Corporation and Sutter Health, which had been infiltrated and damaged.”

Officials also said Jubair and Owens failed to cooperate after their arrests. 

“This is the largest cybercrime prosecution ever brought before the U.K. courts and the culmination of nearly two years of painstaking work,” Paul Foster, head of the National Crime Center’s National Cybercrime Unit, said in a statement. 

“Scattered Spider has been the most significant cybercrime threat to the U.K. in recent years. Through this investigation, we have severely disrupted that threat and brought key offenders to justice,” Foster added.

Despite the upbeat reaction from U.K. officials, Nixon said the punishment for Jubair and Owens is “remarkably lenient considering the period of continuous reoffending lasted longer than the sentence.”

Nixon hopes the United States will eventually extradite the pair to face additional charges. “If that happens, they won’t be able to use mental illness as a loophole to get back to harming society as soon as possible,” she added.

“No one who worked on their case was surprised they would reoffend, and there seems to be no allowance in the law to protect the public from what everyone knew was going to happen,” Nixon said. “I know the narrative in the cybercriminal culture will glorify them, but they wouldn’t if they knew the full story.”

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A 19-year-old alleged member of the Scattered Spider extortion crew was extradited to the United States last week and remains in federal custody awaiting several cybercrime charges, the Justice Department said Wednesday. 

Peter Stokes, a dual citizen of the United States and Estonia, was allegedly involved in Scattered Spider since it formed in 2022 and boasted on social media about the luxurious globetrotting life he enjoyed while he was still a child. 

The cybercrime ring of young, native English-speaking people has infiltrated more than 100 businesses since 2022, and extorted more than $100 million from its victims around the world, officials said. 

“Scattered Spider has repeatedly targeted U.S. companies, extorting employees, inflicting millions of dollars in losses, and disrupting essential operations,” Brett Leatherman, assistant director of the FBI’s cyber division, said in a statement. “Through strong domestic and international partnerships, the FBI will continue to identify, disrupt, and hold cybercriminals accountable, no matter where they are located.”

Stokes, also known as “Bouquet” and “Jordan,” is accused of participating in multiple data theft and extortion attempts, but the FBI only provided specific details about some more recent attacks on a luxury jewelry retailer in May 2025 and a U.S.-based insurance company in June 2025.

Cybercrime researchers have been tracking Stokes’ online activity since 2022.  Microsoft determined his true identity and implicated Stokes as a member of Scattered Spider in a criminal referral in October 2024, according to court records.

He was still a child at that time, and authorities typically don’t arrest known cybercriminals until they reach adulthood. Stokes lived in Estonia and the United Arab Emirates while he allegedly committed some of his crimes. 

Police arrested Stokes in Finland as he attempted to board an April 10 flight to Japan, possessing two hard drives containing allegedly incriminating evidence. He made an initial court appearance in Chicago Tuesday and was ordered to remain in jail.

Stokes exhibited an opulent life before his capture, according to his social media activity and State Department travel records. This included trips and multiple stays in luxury hotels in Paris, Italy, Spain, Germany, New York, Florida, New Mexico, Thailand and Dubai between 2024 and 2025, according to a criminal complaint filed against him in the U.S. District Court for the Northern District of Illinois.

He also posted images of watches, substantial cash and an apparently diamond-encrusted chain depicting the words “Hack the Planet.”

Officials also noted that Stokes’ family appeared to be well off, as his father was a previous executive in two major European companies. 

Stokes was charged with conspiracy, cyber intrusion and fraud offenses.

“The malicious attacks from Scattered Spider caused widespread disruption to businesses and organizations throughout the United States,” Andrew Boutros, U.S. attorney for the Northern District of Illinois, said in a statement. “These charges underscore our unwavering commitment to keeping pace with technologically savvy criminal actors and holding accountable those who seek to profit from cyber intrusions, including those located in foreign jurisdictions who do harm to American businesses and victims.”

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