Security Affairs

DECEMBER 4, 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.

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Ransomware Telecommunications Healthcare Insurance 130

Security Affairs

MAY 13, 2025

Interlock Ransomware ‘s attack on a defense contractor exposed global defense supply chain details, risking operations of top contractors and their clients. Resecurity envisions the cascading effects on the defense supply chain due to ransomware activity.

Ransomware 117

Ransomware Cyber Attacks Risk Hacking 117

Security Affairs

MARCH 30, 2025

The Walmart-owned membership warehouse club chain Sams Club is investigating claims of a Cl0p ransomware security breach. This week, Cl0p ransomware group listed Sams Club among the victims of its December Cleo software exploit , accusing it of ignoring security. Victims include Petmate, and Simple Human.

Ransomware 120

Ransomware Data breaches Software Hacking 120

Security Affairs

NOVEMBER 29, 2024

Russian authorities arrested ransomware affiliate Mikhail Matveev, aka Wazawaka, for developing malware and ties to hacking groups. In May 2023, the US Justice Department charged Russian national Mikhail Pavlovich Matveev for his alleged role in multiple ransomware attacks. ” reported RIA Novosti.

Ransomware 122

Ransomware Healthcare Hacking Malware 122

Security Affairs

MARCH 10, 2025

Another American hospital falls victim to a ransomware attack; the RansomHouse gang announced the hack of Loretto Hospital in Chicago.” ” The RansomHouse gang announced the hack of Loretto Hospital in Chicago, the groups claims to have stolen 1.5TB of sensitive data. Ransomware attacks on U.S.

Hacking 120

Hacking Healthcare Backups Ransomware 120

Security Affairs

NOVEMBER 13, 2024

Bitdefender released a decryptor for the ShrinkLocker ransomware, which modifies BitLocker configurations to encrypt a system’s drives. ShrinkLocker ransomware was first discovered in May 2024 by researchers from Kaspersky. “ShrinkLocker is a novel ransomware strain that leverages a unique approach to encrypt systems.

Ransomware 127

Ransomware Encryption Passwords Backups 127

Security Affairs

MAY 8, 2025

Lockbit ransomware group has been compromised, attackers stole and leaked data contained in the backend infrastructure of their dark web site. Hackers compromised the dark web leak site of the LockBit ransomware gang and defaced it, posting a message and a link to the dump of the MySQL database of its backend affiliate panel.

Ransomware 113

Ransomware Data breaches Hacking Accountability 113

Security Affairs

NOVEMBER 8, 2024

Texas oilfield supplier Newpark Resources suffered a ransomware attack that disrupted its information systems and business applications. Texas oilfield supplier Newpark Resources revealed that a ransomware attack on October 29 disrupted access to some of its information systems and business applications.

Ransomware 127

Ransomware Manufacturing Malware Hacking 127

Security Affairs

DECEMBER 26, 2024

A ransomware attack on Pittsburgh Regional Transit (PRT) was the root cause of the agency’s service disruptions. On December 23, 2024, Pittsburgh Regional Transit (PRT) announced it was actively responding to a ransomware attack that was first detected on Thursday, December 19.

Ransomware 125

Ransomware Cyber Attacks Hacking Cybersecurity 125

Security Affairs

MAY 4, 2025

A 36-year-old Yemeni man behind Black Kingdom ransomware is indicted in the U.S. authorities have indicted Rami Khaled Ahmed (aka Black Kingdom, of Sanaa, Yemen), a 36-year-old Yemeni national, suspected of being the administrator of the Black Kingdom ransomware operation. for 1,500 attacks on Microsoft Exchange servers.

Ransomware 118

Ransomware Encryption VPN Malware 118

Security Affairs

DECEMBER 3, 2024

ENGlobal Corporation disclosed a ransomware attack, discovered on November 25, disrupting operations, in a filing to the SEC. A ransomware attack disrupted the operations of a major energy industry contractor, ENGlobal Corporation. No ransomware gang has claimed responsibility for the attack. million year-to-date.

Ransomware 123

Ransomware Encryption Technology Cybersecurity 123

Security Affairs

FEBRUARY 1, 2025

Indian multinational technology company Tata Technologies suspended some IT services following a ransomware attack. Indian multinational Tata Technologies , a Tata Motors subsidiary, suspended some IT services following a ransomware attack. The company confirmed that the security breach impacted some of its IT systems.

Technology 121

Technology Ransomware Engineering Manufacturing 121

Security Affairs

NOVEMBER 9, 2024

Once compromised, the CMU could be modified to target connected devices, potentially causing Denial of Service (DoS), device bricking, ransomware attacks, or even safety issues. ” concludes the report.

Hacking 133

Hacking Firmware Software Manufacturing 133

Security Affairs

NOVEMBER 18, 2024

A ransomware attack on Great Plains Regional Medical Center compromised personal data of 133,000 individuals, exposing sensitive information. On September 8, 2024, Great Plains Regional Medical Center (Oklahoma) suffered a ransomware attack. “On September 8, 2024, we suffered a ransomware attack on our computer system.

Ransomware 129

Ransomware Insurance Encryption Healthcare 129

Krebs on Security

OCTOBER 28, 2020

In March 2020, KrebsOnSecurity alerted Swedish security giant Gunnebo Group that hackers had broken into its network and sold the access to a criminal group which specializes in deploying ransomware. He declined to comment on the particulars of the extortion incident.

Hacking 357

Hacking Ransomware Banking Accountability 357

Security Affairs

FEBRUARY 13, 2025

A November 2024 RA World ransomware attack on an Asian software firm used a tool linked to China-linked threat actors. Broadcom researchers reported that threat actors behind an RA World ransomware attack against an Asian software and services firm employed a tool that was explosively associated in the past with China-linked APT groups.

Ransomware 123

Ransomware Software Cybercrime Encryption 123

Security Affairs

NOVEMBER 6, 2024

Georgia, a ransomware attack disrupted Memorial Hospital and Manor’s access to its Electronic Health Record system. A ransomware attack hit Memorial Hospital and Manor in Bainbridge, Georgia, and disrupted the access to its Electronic Health Record system. Ransomware attacks on U.S. terabytes of data.

Ransomware 130

Ransomware Healthcare Antivirus Data breaches 130

Security Affairs

JANUARY 15, 2025

The ransomware group Codefinger is using compromised AWS keys to encrypt S3 bucket data using SSE-C, Halcyon researchers warn. The ransomware group Codefinger has been spotted using compromised AWS keys to encrypt data in S3 buckets. Halcyon researchers pointed out that this ransomware campaign does not exploit any AWS vulnerability.

Encryption 121

Encryption Ransomware Authentication Accountability 121

Security Affairs

MARCH 16, 2025

A Micronesian state suffered a ransomware attack and was forced to shut down all computers of its government health agency. A state in Micronesia, the state of Yap, suffered a ransomware attack, forcing the shutdown of all computers in its government health agency. No ransomware group has claimed responsibility for this attack.

Ransomware 121

Ransomware Government Internet Internet 121

Security Affairs

APRIL 25, 2025

The Interlock ransomware gang claimed responsibility for the attack on the leading kidney dialysis company DaVita and leaked alleged stolen data. Theyve activated contingency plans and manual procedures where necessary and are working to securely restore affected systems. The DaVita network was encrypted by InterLock Ransomware.

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Ransomware Encryption Insurance Marketing 104

Security Affairs

DECEMBER 21, 2024

Romanian national was sentenced to 20 years in prison for his role in NetWalker ransomware attacks, pleading guilty to fraud charges in June. Romanian national Daniel Christian Hulea, 30, was sentenced to 20 years in prison for his role in NetWalker ransomware attacks. ” reads the press release published by DoJ. in restitution.”

Ransomware 110

Ransomware Healthcare Government Cryptocurrency 110

Security Affairs

NOVEMBER 4, 2024

The July 2024 ransomware attack that hit the City of Columbus, Ohio, exposed the personal and financial data of 500,000 individuals. On July 29, 2024, the City published an update on the City’s website and confirmed that the City of Columbus suffered a ransomware attack. The gang claimed they had stolen databases containing 6.5

Ransomware 118

Ransomware Identity Theft Data breaches Cyber threats 118

Security Affairs

DECEMBER 9, 2024

Romanian energy supplier Electrica Group is investigating an ongoing ransomware attack impacting its operations. The company assured investors that the attack hadn’t affected its critical systems, but temporary disruptions in customer services might occur due to enhanced security protocols.

Ransomware 122

Ransomware Cyber Attacks Cybercrime Marketing 122

Security Affairs

JANUARY 27, 2025

Threat actors behind ESXi ransomware attacks target virtualized environments using SSH tunneling to avoid detection. Researchers at cybersecurity firm Sygnia warn that threat actors behind ESXi ransomware attacks target virtualized environments using SSH tunneling to avoid detection.

Ransomware 98

Ransomware Authentication Hacking Cybersecurity 98

Security Affairs

APRIL 8, 2025

The Tor leak site of the Everest ransomware group went offline after being hacked and defaced over the weekend. The Everest ransomware gangs darknet site went offline after being hacked and defaced, with victim listings replaced by the following message. In August 2024, the U.S.

Ransomware 88

Ransomware Healthcare Hacking Scams 88

Security Affairs

FEBRUARY 20, 2025

NailaoLocker ransomware is a new threat that targeted European healthcare organizations from June to October 2024. The experts believe threat actors exploited the zero-dayCVE-2024-24919 in Check Point Security Gateways with Remote Access VPN or Mobile Access features. The ransomware appends the .

Healthcare 90

Healthcare Ransomware VPN Malware 90

Security Affairs

FEBRUARY 12, 2025

The Sarcoma ransomware group announced a breach of the Taiwanese printed circuit board (PCB) manufacturing giant Unimicron. The Sarcoma ransomware group claims to have breached Taiwanese PCB manufacturer Unimicron, leaked sample files, and threatened a full data release if no ransom is paid by Tuesday, February 20, 2025.

Computers and Electronics 82

Computers and Electronics Ransomware Manufacturing Data breaches 82

Security Affairs

MARCH 26, 2025

Resecurity found an LFI flaw in the leak site of BlackLock ransomware, exposing clearnet IPs and server details. Resecurity has identified a Local File Include (LFI) vulnerability in Data Leak Site (DLS) of BlackLock Ransomware. BlackLock Ransomware was named as one of the fastest-growing ransomware strains for today.

Ransomware 81

Ransomware Cybersecurity Healthcare Accountability 81

Security Affairs

JANUARY 22, 2025

Two ransomware groups exploiting Microsoft 365 services and default settings to target internal enterprise users. Sophos researchers started investigating two distinct clusters of activity, tracked as STAC5143 and STAC5777, in response to customer ransomware attacks in November and December 2024.

Ransomware 98

Ransomware Malware Social Engineering Engineering 98

Security Affairs

JANUARY 16, 2025

The Clop ransomware gang claims dozens of victims from a Cleo file transfer vulnerability, though several companies dispute the breaches. The Clop ransomware group added 59 new companies to its leak site, the gain claims to have breached them by exploiting a vulnerability in Cleo file transfer products. are still exploitable.

Ransomware 75

Ransomware Software Hacking Cybersecurity 75

Krebs on Security

MARCH 7, 2022

Three stories here last week pored over several years’ worth of internal chat records stolen from the Conti ransomware group, the most profitable ransomware gang in operation today. Before that, Jeffrey Ladish , an information security consultant based in Oakland, Calif.,

Ransomware 277

Ransomware Cryptocurrency DDOS Scams 277

Security Affairs

MARCH 7, 2025

Medusa ransomware has claimed nearly 400 victims since January 2023, with attacks increasing by 42% between 2023 and 2024. The Symantec Threat Hunter Team reported that the Medusa ransomware operators have claimed nearly 400 victims since January 2023. Experts tracked the Medusa ransomware activity as Spearwing.

Ransomware 66

Ransomware Antivirus Healthcare Encryption 66

Security Affairs

FEBRUARY 11, 2025

Authorities dismantled the 8Base ransomware gang, shutting down its dark web data leak and negotiation sites. An international law enforcement operation, codenamed Operation Phobos Aetor, dismantled the 8Base ransomware gang. The ransomware component is then decrypted and loaded into the SmokeLoader process memory.

Ransomware 75

Ransomware Encryption Backups Malware 75

Security Affairs

FEBRUARY 9, 2024

Black Basta ransomware gang claims the hack of the car maker Hyundai Motor Europe and the theft of three terabytes of their data. BleepingComputer reported that the Car maker Hyundai Motor Europe was breached by the Black Basta ransomware gang. The threat actors claim to have stolen three terabytes of data from the company.

Hacking 144

Hacking Ransomware Data breaches Manufacturing 144

Security Affairs

OCTOBER 19, 2024

Cybersecurity and Infrastructure Security Agency (CISA) added the Veeam Backup and Replication flaw CVE-2024-40711 (CVSS score of 9.8) This week, Sophos researchers warned that ransomware operators are exploiting the critical vulnerability CVE-2024-40711 in Veeam Backup & Replication to create rogue accounts and deploy malware.

Backups 134

Backups VPN Ransomware Authentication 134

Security Affairs

MAY 13, 2025

A 45-year-old foreign man has been arrested in Moldova for allegedly participating in ransomware attacks on Dutch companies in 2021. He is internationally wanted for multiple cybercrime, including ransomware attacks, blackmail, and money laundering, targeting Dutch companies. million euros.”

Ransomware 72

Ransomware Cybercrime Malware Banking 72

Security Affairs

MARCH 27, 2025

Arkana Security, a new ransomware group, claims to have breached the telecommunications provider WideOpenWest (WOW!). The new ransomware group Arkana Security claims to have hacked US telecom provider WOW!, The ransomware group steals victims’ data to pressure them into paying a “generous fee.”

Hacking 82

Hacking Telecommunications Data breaches Internet 82