• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

Critical FortiSIEM flaw under active exploitation, Fortinet warns

 | 

Charon Ransomware targets Middle East with APT attack methods

 | 

Hackers leak 2.8M sensitive records from Allianz Life in Salesforce data breach

 | 

SAP fixed 26 flaws in August 2025 Update, including 4 Critical

 | 

August 2025 Patch Tuesday fixes a Windows Kerberos Zero-Day

 | 

Dutch NCSC: Citrix NetScaler zero-day breaches critical orgs

 | 

Chrome sandbox escape nets security researcher $250,000 reward

 | 

Smart Buses flaws expose vehicles to tracking, control, and spying

 | 

MedusaLocker ransomware group is looking for pentesters

 | 

Google confirms Salesforce CRM breach, faces extortion threat

 | 

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 57

 | 

Security Affairs newsletter Round 536 by Pierluigi Paganini – INTERNATIONAL EDITION

 | 

Embargo Ransomware nets $34.2M in crypto since April 2024

 | 

Germany limits police spyware use to serious crimes

 | 

Phishing attacks exploit WinRAR flaw CVE-2025-8088 to install RomCom

 | 

French firm Bouygues Telecom suffered a data breach impacting 6.4M customers

 | 

Columbia University data breach impacted 868,969 people

 | 

SonicWall dismisses zero-day fears after Ransomware probe

 | 

Air France and KLM disclosed data breaches following the hack of a third-party platform

 | 

CISA, Microsoft warn of critical Exchange hybrid flaw CVE-2025-53786

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Breaking News
  • Cyber Crime
  • Hacking
  • Malware
  • Black Basta ransomware gang hit BT Group

Black Basta ransomware gang hit BT Group

Pierluigi Paganini December 04, 2024

BT Group (formerly British Telecom)’s Conferencing division shut down some of its servers following a Black Basta ransomware attack.

British multinational telecommunications holding company BT Group (formerly British Telecom) announced it has shut down some of its servers following a Black Basta ransomware attack.

“We identified an attempt to compromise our BT Conferencing platform. This incident was restricted to specific elements of the platform, which were rapidly taken offline and isolated,” a company spokesman told BleepingComputer.

BT Group operates in 180 countries, the company leads in UK fixed-line, broadband, mobile, TV, and IT services. The attack did not impact live BT Conferencing services.

“The impacted servers do not support live BT Conferencing services, which remain fully operational, and no other BT Group or customer services have been affected,” a spokesperson told Recorded Future News.

“We’re continuing to actively investigate all aspects of this incident, and we’re working with the relevant regulatory and law enforcement bodies as part of our response,”

At this time, it is unclear if threat actors have stolen data from the telecommunications giant.

The Black Basta ransomware gang added BT Group to the list of victims on its Tor leak site. The group claimed to have stolen 500GB of data including Finacial data, Organisation data, Users data and personal documents, NDA’s, Confidential data, and more.

BT Group

As proof of the data breach, the group published multiple screenshots, including pictures of passports and other documents.

In May, the FBI, CISA, HHS, and MS-ISAC issued a joint Cybersecurity Advisory (CSA) regarding the Black Basta ransomware activity as part of the StopRansomware initiative.

Black Basta has targeted at least 12 critical infrastructure sectors, including Healthcare and Public Health. The alert provides Tactics, Techniques, and Procedures (TTPs) and Indicators of Compromise (IOCs) obtained from law enforcement investigations and reports from third-party security firms.

Black Basta ransomware-as-a-service (RaaS) has been active since April 2022, it impacted several businesses and critical infrastructure entities across North America, Europe, and Australia. As of May 2024, Black Basta has impacted over 500 organizations worldwide.

“Black Basta is a ransomware-as-a-service (RaaS) variant, first identified in April 2022. Black Basta affiliates have targeted over 500 private industry and critical infrastructure entities, including healthcare organizations, in North America, Europe, and Australia.” reads the CSA.

In December 2023, Elliptic and Corvus Insurance published a joint research that revealed the group accumulated at least $107 million in Bitcoin ransom payments since early 2022. According to the experts, the ransomware gang has infected over 329 victims, including ABB, Capita, Dish Network, and Rheinmetall. 

The researchers analyzed blockchain transactions, they discovered a clear link between Black Basta and the Conti Group.

In 2022, the Conti gang discontinued its operations, coinciding with the emergence of the Black Basta group in the threat landscape.

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, ransomware)


facebook linkedin twitter

Black Basta ransomware BT Group Cybercrime Hacking hacking news information security news IT Information Security malware Pierluigi Paganini Security Affairs Security News

you might also like

Pierluigi Paganini August 13, 2025
Critical FortiSIEM flaw under active exploitation, Fortinet warns
Read more
Pierluigi Paganini August 13, 2025
Charon Ransomware targets Middle East with APT attack methods
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    Critical FortiSIEM flaw under active exploitation, Fortinet warns

    Hacking / August 13, 2025

    Charon Ransomware targets Middle East with APT attack methods

    Malware / August 13, 2025

    Hackers leak 2.8M sensitive records from Allianz Life in Salesforce data breach

    Data Breach / August 13, 2025

    SAP fixed 26 flaws in August 2025 Update, including 4 Critical

    Uncategorized / August 13, 2025

    August 2025 Patch Tuesday fixes a Windows Kerberos Zero-Day

    Hacking / August 12, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT