Two Scattered Spider members plead guilty over the 2024 Transport for London intrusion
Thalha Jubair (20) and Owen Flowers (18) changed their pleas to guilty at Woolwich Crown Court on 2026-06-22, both admitting conspiracy to commit unauthorised acts against Transport for London under the Computer Misuse Act (UK National Crime Agency, 2026-06-22; ITV News, 2026-06-22). The 31 August – 3 September 2024 intrusion disrupted TfL services for three months, forced in-person password resets for all 28,000 staff, and affected roughly 10 million customers including Oyster systems, at a cost the NCA puts at £29M in loss and recovery (ITV and the BBC reported £39M. Flowers additionally admitted attempted intrusions against US healthcare providers Sutter Health and SSM Health; the NCA ties both defendants to the Scattered Spider collective (UNC3944 / Storm-0875), and sentencing is set for 16 July 2026 (Yahoo/BBC, 2026-06-22).
ATT&CK mapping
3 techniques mapped from the cited reporting · MITRE ATT&CK v19.2
Initial Access TA0001
T1078Valid Accounts
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.
T1566Phishing
Adversaries may send phishing messages to gain access to victim systems. All forms of phishing are electronically delivered social engineering. Phishing can be targeted, known as spearphishing. In spearphishing, a specific individual, company, or industry will be targeted by the adversary. More generally, adversaries can conduct non-targeted phishing, such as in mass malware spam campaigns.
Persistence TA0003
T1078Valid Accounts
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.
Privilege Escalation TA0004
T1078Valid Accounts
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.
Stealth TA0005
T1078Valid Accounts
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.
Credential Access TA0006
T1621Multi-Factor Authentication Request Generation
Adversaries may attempt to bypass multi-factor authentication (MFA) mechanisms and gain access to accounts by generating MFA requests sent to users.
Update chain
AI-generated · no human review · this permalink is the shareable record for the finding · verify operationally critical claims against the linked primary source.