@BushidoToken Threat Intel

Introduction When a company that manages data for millions of UK citizens falls victim to ransomware, the whole industry should pay attention to it. On 15 October 2025, the UK Information Commissioner’s Office (ICO) published a detailed 136 page report about the Capita breach.  The aim of this blog is to extract actionable cybersecurity lessons from the ICO’s findings as well as open source reports surrounding the breach from a cyber threat intelligence (CTI) analyst’s perspective to help SOC and CERT teams, and CISOs understand what happened and how to avoid the mistakes made by others. BLUF Incident Impact Summary: Capita was attacked by BlackBasta ransomware in March 2023 Over six million individual’s records were exfiltrated from Capita’s systems A £14 million fine was issued to Capita by the ICO Capita said in May 2023, the incident cost up to £20 million to recover Important context about Capita The Capita Group is a business process outsourcing (BPO) and professional servic...

  Introduction This blog is part of a cyber threat intelligence (CTI) blog series called Tracking Adversaries that investigates prominent or new threat groups. The focus of this blog is EvilCorp, a sanctioned Russia-based cybercriminal enterprise known for launching ransomware attacks, and RansomHub, a prominent ransomware as a service (RaaS) operation run by Russian-speaking cybercriminals. These two threat groups have been linked together through cooperation on intrusions and IOCs and TTPs shared by multiple CTI sources. The implication of this link is critical due to RansomHub being the most active ransomware gang and is working with a well-known sanctioned affiliate. Who is RansomHub? Active since February 2024, RansomHub is a RaaS operation formerly known as Cyclops and Knight and is run by Russian-speaking adversaries. It  is currently used by more and more cybercriminals that are ex-affiliates of other RaaS operations. This includes the ALPHV/BlackCat RaaS an...