Threat group profile

Scattered Spider

Also known as Roasted 0ktapus, Octo Tempest, Storm-0875

Scattered Spider is described by MITRE ATT&CK and by the FBI, CISA and partner agencies as a cybercriminal group that targets large companies and their IT help desks, mainly by tricking staff into resetting passwords and MFA.

In short

Scattered Spider is described by MITRE ATT&CK and by the FBI, CISA and partner agencies as a cybercriminal group that targets large companies and their IT help desks, mainly by tricking staff into resetting passwords and MFA. The UK National Crime Agency said on 16 July 2026 that its action against two leading members effectively halted the group, while others may reuse the name.

Profile MapThreat Group
  1. Names9names in public reportsScattered Spider · Roasted 0ktapus · Octo Tempest
  2. Sectors9named as targetsEarly targets · Widened in 2023 · Sector named in advisory
  3. Techniques13in the attack chainReconnaissance · Resource Development · Initial Access
  4. Tools10tools and malware listedDragonForce ransomware · BlackCat · Raccoon Stealer

In one minute

Who they are
Attributed by MITRE ATT&CK and by the FBI, CISA and partner agencies (advisory first published 16 November 2023, updated 29 July 2025) as a cybercriminal group. No source names a state or a country of origin. The US Department of Justice (2025, 2026) and the UK National Crime Agency (2026) name individual members, and the people charged in the US have not been convicted there.
Who they target
Large companies and the IT help desks that work for them. MITRE lists CRM, outsourcing, telecom and technology firms first, then gaming, hospitality, retail, managed service providers, manufacturing and finance from 2023. The NCA names Transport for London and two US healthcare firms in its case.
How they usually get in
Mostly by tricking people: phone calls and texts posing as IT or help desk staff, repeated MFA prompts, SIM swaps, and calls that persuade a help desk to reset a password or move MFA. Then they register their own MFA and install remote access tools.
What stands out
The advisory describes theft of data for extortion, with ransomware added at times (DragonForce in the July 2025 update), and a focus on help desk staff rather than software flaws. The UK NCA said on 16 July 2026 that its action against two leading members effectively halted the group, while others may reuse the name.
What to do first
Make the help desk prove a caller's identity before any password or MFA reset, and move to phishing-resistant MFA. Then allowlist remote access tools and keep tested offline backups.

Names

Public reports use several names for this activity.

Names used for Scattered Spider
NameWhere it appears
Scattered Spider MITRE ATT&CK G1015; joint advisory AA23-320A; US Department of Justice[1, 2, 9]
Roasted 0ktapus MITRE ATT&CK Associated Groups[1]
Octo Tempest MITRE ATT&CK Associated Groups; AA23-320A; US Department of Justice[1, 2, 9]
Storm-0875 MITRE ATT&CK Associated Groups; AA23-320A[1, 2]
UNC3944 MITRE ATT&CK Associated Groups; AA23-320A; US Department of Justice[1, 2, 9]
Scatter Swine Joint advisory AA23-320A[2]
Oktapus Joint advisory AA23-320A[2]
0ktapus US Department of Justice complaints, 2025 and 2026[9, 10]
Muddled Libra Joint advisory AA23-320A[2]

Who says so

Attribution is a judgment by the body named. It is shown here as attributed, not as proven fact.

  • MITRE ATT&CK Page version 3.0, last modified 31 July 2026

    Describes the group as a native English-speaking cybercriminal group active since at least 2022, and lists Roasted 0ktapus, Octo Tempest, Storm-0875 and UNC3944 as associated groups.[1]

  • CISA and FBI with RCMP, ASD's ACSC, AFP, Canadian Cyber Centre and UK NCSC 16 November 2023, updated 29 July 2025

    Joint advisory says Scattered Spider is a cybercriminal group that targets large companies and their contracted IT help desks, using FBI investigation data as recent as June 2025.[2, 3]

  • Canadian Centre for Cyber Security 29 July 2025

    Repeats the joint advisory and describes the group as a cyber criminal group that targets large organizations and their contracted IT help desks.[4]

  • UK National Cyber Security Centre 4 May 2025

    Said it was not yet in a position to say whether the retail attacks were linked or were a campaign by a single actor. It noted press speculation about the group and advised on help desk checks.[5]

  • UK National Crime Agency 10 July 2025

    Arrested four people over attacks on M&S, Co-op and Harrods in April 2025. Its page does not name Scattered Spider and states no charge.[6]

  • US Department of Justice 18 September 2025

    A complaint (District of New Jersey) alleges that Thalha Jubair took part in an extortion scheme "carried out by a group known as Scattered Spider". A complaint is an allegation.[9]

  • UK National Crime Agency 22 June 2026

    Stated that Thalha Jubair and Owen Flowers were members of the group known as Scattered Spider and had changed their pleas to guilty over the Transport for London attack.[7]

  • UK National Crime Agency 16 July 2026

    Stated that the two were leading members, were each sentenced to five years and six months, and that its action effectively halted the group's criminal activity, though others may reuse the name.[8]

  • US Department of Justice 1 July 2026

    A complaint (Northern District of Illinois) charges Peter Stokes with conspiracy, computer intrusion and fraud and calls him an alleged member of Scattered Spider. A complaint is an allegation.[10]

Where sources differ

Sources differ on what the name covers. The US Department of Justice (18 September 2025 and 1 July 2026) and MITRE describe a long-running group. The UK National Crime Agency (16 July 2026) says its action against two leading members effectively halted the group, while saying others may keep using the name. The UK NCSC (4 May 2025) and the National Crime Agency (10 July 2025) did not tie the April 2025 retail attacks to Scattered Spider, so those attacks are not counted here as the group's work. Court papers give the nationalities of people charged (United Kingdom; United States and Estonia). No source gives a country of origin for the group itself.

Who they target

Sectors

  • Early targetsMITRE says the group first targeted customer relationship management providers, business process outsourcing firms, and telecommunications and technology companies.[1]
  • Widened in 2023MITRE says the group expanded in 2023 to these sectors.[1]
  • Sector named in advisoryThe joint advisory was released in response to activity against the commercial facilities sectors, subsectors and other sectors.[2, 3]
  • Contracted help desksCISA and partners say the group targets large companies and their contracted IT help desks.[2, 4]
  • Transport for LondonThe NCA says the network was infiltrated between 31 August and 3 September 2024 by two people it names as members.[7, 8]
  • SSM Health Care Corporation and Sutter HealthThe NCA says their networks had been infiltrated and damaged, found when one of the two people was arrested in September 2024.[7, 8]
  • Alleged 2024 and 2025 intrusionsThe Department of Justice complaint alleges access to a US critical infrastructure company and the US Courts in October 2024 and January 2025.[9]
  • At least 47 US victims allegedThe complaint alleges about 120 network intrusions, at least 47 US victims, and more than $115 million paid.[9]
  • Alleged May 2025 extortionThe complaint says a ransom demand of about $8 million was made in May 2025 and no ransom was paid.[10]

Operations timeline

Each entry is attributed to the group by the sources cited.

  1. June 2022 to December 2022

    MITRE campaign C0027

    MITRE lists campaign C0027 with these dates, using SMS and phone calls that pose as IT staff, MFA push requests and remote access tools.[1]

  2. May 2022

    Start of alleged intrusions

    A US complaint alleges the intrusions it describes ran from as early as May 2022 to as recently as September 2025. These are allegations.[9]

  3. 16 November 2023

    Joint advisory published

    The FBI and CISA, with partners, publish advisory AA23-320A on the group.[2, 3]

  4. 31 August to 3 September 2024

    Transport for London attack

    The NCA says the network was infiltrated in these days by Thalha Jubair and Owen Flowers, whom it names as members.[7, 8]

  5. 6 September 2024

    First arrest in the UK case

    The NCA says Owen Flowers was first arrested for the TfL attack and was found to be hacking the systems of two US healthcare companies.[8]

  6. October 2024 and January 2025

    Alleged US intrusions

    A US complaint alleges Thalha Jubair took part in access to a US critical infrastructure company and the US Courts. An allegation only.[9]

  7. 4 May 2025

    UK NCSC statement

    The NCSC says it cannot yet say whether the UK retail attacks are linked, and notes press speculation about the group.[5]

  8. May 2025

    Alleged ransom demand

    A US complaint alleges a ransom demand of about $8 million to a jewellery retailer; the retailer evicted the intruders and no ransom was paid. An allegation only.[10]

  9. June 2025

    Latest FBI data in advisory

    The updated advisory uses FBI investigation data as recent as June 2025.[2]

  10. 29 July 2025

    Advisory updated

    The joint advisory adds new methods and tools, including DragonForce ransomware reported by trusted third parties.[2, 4]

  11. 16 September 2025

    UK arrests

    The NCA and City of London Police arrest Jubair and Flowers; US authorities say UK authorities arrested Jubair and a second person on the same day.[8, 9]

  12. 18 September 2025

    US complaint unsealed

    The Department of Justice unseals a complaint against Thalha Jubair.[9]

  13. April 2026

    Arrest in Finland

    The Department of Justice says Finnish authorities arrested Peter Stokes in April under an Interpol Red Notice.[10]

  14. 22 June 2026

    Guilty pleas in London

    The NCA says Jubair and Flowers changed their pleas to guilty over the TfL attack.[7]

  15. 1 July 2026

    Stokes complaint unsealed

    The Department of Justice says Stokes was extradited and made an initial appearance in Chicago. An allegation only.[10]

  16. 16 July 2026

    UK sentences

    The NCA says Jubair and Flowers were each sentenced to five years and six months.[8]

Government actions

Indictments, sanctions and advisories that name the group or its alleged members.

Government actions about Scattered Spider
DateWhoWhat
16 Nov 2023 CISA and FBI Joint advisoryRelease of advisory AA23-320A on Scattered Spider, with tactics and mitigations.[2, 3]
4 May 2025 UK NCSC Advice to organizationsBlog post with recommendations after the retail attacks, with a link to the joint advisory.[5]
10 Jul 2025 UK National Crime Agency ArrestsFour people arrested over the M&S, Co-op and Harrods attacks; the page does not name Scattered Spider and states no charge.[6]
29 Jul 2025 FBI, CISA, RCMP, ASD's ACSC, AFP, Canadian Cyber Centre, UK NCSC Updated joint advisoryNew methods, tools and ransomware added; the Canadian Cyber Centre republished it.[2, 4]
16 Sep 2025 UK National Crime Agency and City of London Police ArrestsThalha Jubair and Owen Flowers arrested at their home addresses.[8, 9]
18 Sep 2025 US Department of Justice Criminal complaintComplaint (District of New Jersey) against Thalha Jubair for conspiracies to commit computer fraud, wire fraud and money laundering. An allegation, not a conviction.[9]
April 2026 Finnish authorities for the US ArrestPeter Stokes arrested in Finland under an Interpol Red Notice.[10]
22 Jun 2026 UK court, as reported by the NCA Guilty pleasJubair and Flowers changed their pleas to guilty over the Transport for London attack.[7]
1 Jul 2026 US Department of Justice Criminal complaint and extraditionComplaint (Northern District of Illinois) against Peter Stokes for conspiracy, computer intrusion and fraud; he was extradited from Finland. An allegation, not a conviction.[10]
16 Jul 2026 UK court, as reported by the NCA SentencesJubair and Flowers each sentenced to five years and six months.[8]

How they get in

Techniques reported for this group, by MITRE ATT&CK tactic.

Reconnaissance

  • Phishing for Information: Spearphishing Voice T1598.004

    Calls employees and help desks to learn how password resets work and to collect reset details.[1, 2]

Resource Development

  • Acquire Infrastructure: Domains T1583.001

    Registers domains that copy corporate login portals; the advisory gives the pattern of the company name plus a help desk or single sign-on word.[1, 2]

Initial Access

  • Phishing: Spearphishing Voice T1566.004

    Phones staff and help desks, posing as IT or as the employee, to reset passwords or move MFA to a device the caller controls.[1, 2]

  • Valid Accounts T1078

    Uses stolen or bought employee and contractor credentials to get in.[1, 2]

  • SIM Card Swap T1451

    Gets a mobile carrier to move a victim's number to a SIM the attacker holds, so the attacker receives MFA codes.[1, 2]

Persistence

  • Modify Authentication Process: Multi-Factor Authentication T1556.006

    Registers its own MFA tokens after taking over an account.[1, 2]

Privilege Escalation

  • Domain or Tenant Policy Modification: Trust Modification T1484.002

    Adds its own federated identity provider to the single sign-on tenant; the advisory says this was not seen as a current method.[1, 2]

Credential Access

  • Multi-Factor Authentication Request Generation T1621

    Sends repeated MFA prompts until the user accepts, known as push bombing.[1, 2]

  • OS Credential Dumping: NTDS T1003.003

    Copies the domain controller database through volume shadow copies.[1]

Collection

  • Data from Cloud Storage T1530

    Searches cloud storage and data platforms for large amounts of data.[1, 2]

Command and Control

  • Remote Access Tools: Remote Desktop Software T1219.002

    Tells victims to run, or installs itself, commercial remote monitoring tools to keep access.[1, 2]

Exfiltration

  • Exfiltration Over Web Service: Exfiltration to Cloud Storage T1567.002

    Sends stolen data to MEGA, Snowflake and Amazon S3.[1, 2]

Impact

  • Data Encrypted for Impact T1486

    Encrypts files including VMware ESXi servers with ransomware.[1, 2]

Tools and malware

  • DragonForce ransomware Ransomware

    The advisory says trusted third parties report it was used most recently, encrypting VMware ESXi servers.[1, 2]

  • BlackCat Ransomware

    MITRE says the group has deployed BlackCat ransomware; CISA noted BlackCat/ALPHV in November 2023.[1, 3]

  • Raccoon Stealer Information stealer

    Steals login credentials, browser history and cookies.[1, 2]

  • VIDAR Stealer Information stealer

    Listed in the advisory as malware that steals credentials, browser history and cookies.[2]

  • WarzoneRAT Remote access trojan

    Listed by MITRE; the advisory names it as AveMaria, also known as WarZone.[1, 2]

  • RattyRAT Remote access trojan

    Java-based remote access trojan named in the July 2025 update.[2]

  • Mimikatz Credential theft tool

    Used to extract credentials from a system.[1, 2]

  • ngrok Tunnelling tool

    A legitimate tool used to tunnel to local servers over the internet.[1, 2]

  • ConnectWise Remote monitoring tool

    MITRE says the group used it to keep persistent access.[1]

  • Rclone Data transfer tool

    Listed by MITRE among the group's software.[1]

Detection and defense

  1. Use phishing-resistant MFA

    Move to FIDO or WebAuthn style sign-in, which the advisory says is not open to push bombing or SIM swap attacks.

    Counters T1621 T1451 T1556.006

  2. Check who is calling the help desk

    Review how the help desk proves a caller's identity before resetting a password or moving MFA, especially for staff with high privileges.

    Counters T1566.004 T1598.004

  3. Train staff on voice and text phishing

    Teach staff that IT will not ask for MFA codes by phone and how to report odd calls and texts.

    Counters T1566.004 T1598.004

  4. Watch for risky logins and admin accounts

    Look for sign-ins flagged as risky and check that use of domain, enterprise and cloud admin accounts is legitimate.

    Counters T1078 T1556.006

  5. Control remote access tools

    Allowlist approved remote access programs, block portable versions and review logs for unusual use.

    Counters T1219.002

  6. Keep offline backups and split the network

    Keep tested offline backups and segment the network so ransomware spreads less.

    Counters T1486 T1567.002

What Brandefense can do

  • Phishing Monitoring & Domain Abuse

    Find look-alike login and help desk domains registered to copy your company, the pattern the joint advisory describes.

  • Dark Web Monitoring

    See whether employee or contractor credentials are offered for sale, which the advisory says this group has bought.

  • Executive Protection

    Check where the personal details of staff with high access are exposed, since the advisory says such details feed the phone and text tricks.

  • Ransomware Intelligence

    Follow ransomware families and extortion activity, such as DragonForce, that the advisory ties to this group.

Questions

Is Scattered Spider a state group?

No source opened names a state. MITRE ATT&CK and the joint advisory describe it as a cybercriminal group. No source gives a country of origin.

How do they get in?

Mainly through people. The joint advisory describes phone calls and texts posing as IT or help desk staff, repeated MFA prompts and SIM swaps, and calls that persuade a help desk to reset a password or move MFA.

Is the group still active?

The advisory updated on 29 July 2025 uses FBI data as recent as June 2025. On 16 July 2026 the UK National Crime Agency said its action against two leading members effectively halted the group, while others may reuse the name.

Have members been convicted?

In the UK, Thalha Jubair and Owen Flowers pleaded guilty over the Transport for London attack and were each sentenced to five years and six months on 16 July 2026, per the NCA. In the US, Jubair (18 September 2025) and Peter Stokes (1 July 2026) are charged by complaint, which is an allegation and not a conviction.

What should I do first?

Tighten how your help desk checks who is calling before a password or MFA reset, and move to phishing-resistant MFA, per the UK NCSC and the joint advisory.

In our research

  1. UK retail attacks 2025: lessons for retailers October 2026
  2. Scattered Spider: An Emerging Cybercriminal Collective November 2025
  3. DragonForce Ransomware: From Hacktivism to High-Street Extortion September 2025

Sources

  1. Scattered Spider, Group G1015 MITRE ATT&CK Supports: Group description, associated names, techniques, software, campaign C0027
  2. Scattered Spider (AA23-320A, updated 29 July 2025) CISA with the FBI, RCMP, ASD's ACSC, AFP, Canadian Cyber Centre and UK NCSC Supports: Group description, names, entry methods, tools, data theft, ransomware, mitigations
  3. FBI and CISA Release Advisory on Scattered Spider Group CISA Supports: First release of the advisory, 16 November 2023, and the BlackCat ransomware note
  4. Joint cyber security advisory on Scattered Spider Canadian Centre for Cyber Security Supports: Canadian statement on the joint advisory, modified 29 July 2025
  5. Incidents impacting retailers: recommendations from the NCSC UK National Cyber Security Centre Supports: 4 May 2025 position on the retail attacks and advice on help desks and logins
  6. Retail cyber attacks: NCA arrest four for attacks on M&S, Co-op and Harrods UK National Crime Agency Supports: 10 July 2025 arrests; the page does not name the group
  7. Cyber criminals who hacked into Transport for London's computer network are convicted UK National Crime Agency Supports: 22 June 2026 guilty pleas over the Transport for London attack
  8. Two sentenced for hacking Transport for London in UK's biggest ever cyber crime case UK National Crime Agency Supports: 16 July 2026 sentences and the NCA statement on the group
  9. United Kingdom National Charged in Connection with Multiple Cyber Attacks, Including on Critical Infrastructure US Department of Justice Supports: 18 September 2025 complaint against Thalha Jubair (allegations)
  10. Alleged Member of Criminal Cyber Hacking Group "Scattered Spider" Arrested in Finland and Extradited to the United States US Department of Justice Supports: 1 July 2026 complaint against Peter Stokes (allegations)
  11. ShinyHunters (Group G1057) MITRE ATT&CK Supports: Names Scattered Spider and LAPSUS$ among members of The Community; names used for joint operations
  12. Internet Organised Crime Threat Assessment (IOCTA) 2026, section 3.3 New hacking coalitions Europol Supports: Scattered LAPSUS$ Hunters alliance of August 2025