Search: “Defender for Servers”

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CategoryAll Malware 732 Ransomware 650 Vulnerability 614 Exploit / PoC 342 Threat actor 228 Data breach 196 Policy & legal 114 Phishing & fraud 83 Industry 67 AI safety & security 36 Advisory 26 Research 15 Tools 9 AI tools & infra 7

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DragonForce Ransomware Exploited Microsoft Teams to Hide Attack

Infosecurity MagazineJun 16, 11:30 UTC · Jun 16, 2026Ransomware

57

DragonForce Hid Inside Microsoft Teams and Nobody Noticed for Two Months

Security AffairsJun 17, 15:55 UTC · Jun 17, 2026Ransomware

57

A Multi-Method Approach to Identifying Rogue Cobalt Strike Servers

Recorded FutureAug 21, 00:00 UTC · Aug 21, 2025Ransomware

57

St. Louis County Fends Off Cyber

Infosecurity MagazineSep 15, 18:19 UTC · Sep 15, 2020Ransomware

57

Rare Werewolf APT Uses Legitimate Software in Attacks on Hundreds of Russian Enterprises

The Hacker NewsJun 25, 13:37 UTC · Jun 25, 2025Ransomware

57

DDoS attacks in Q1 2021

Kaspersky SecurelistMay 10, 10:00 UTC · May 10, 2021Ransomware CVE-2021-3007

60

Microsoft Exchange vulnerabilities exploited once again for ransomware, this time with Babuk

Cisco TalosNov 3, 12:00 UTC · Nov 3, 2021Ransomware CVE-2021-36942

60

Attacks on Exchange servers expand from nation

The RecordNov 17, 06:58 UTC · Nov 17, 2022Ransomware in the wild

60

IR Trends: Ransomware on the rise, while technology becomes most targeted sector

Cisco TalosJul 25, 10:00 UTC · Jul 25, 2024Ransomware1

60

Microsoft took down 120 of 128 Trickbot servers in recent takedown

Security AffairsOct 21, 06:00 UTC · Oct 21, 2020Ransomware

57

Microsoft linked attacks on SharePoint flaws to China

Security AffairsJul 23, 06:20 UTC · Jul 23, 2025Ransomware CVE-2025-53770

60

Inside DragonForce, the Group Tied to M&S, Co

Infosecurity MagazineMay 6, 13:25 UTC · May 6, 2025Ransomware

60

UNRAVELING EternalBlue: inside the WannaCry’s enabler

Security AffairsSep 1, 14:43 UTC · Sep 1, 2023Ransomware

57

Ransomware world in 2021: who, how and why

Kaspersky SecurelistMay 12, 10:00 UTC · May 12, 2021Ransomware

57

Storm-2603 Exploits SharePoint Flaws to Deploy Warlock Ransomware on Unpatched Systems

The Hacker NewsJul 28, 15:57 UTC · Jul 28, 2025Ransomware in the wildCVE-2025-49706 CVE-2025-49704

60

Attacks on web applications spike in third quarter, new Talos IR data shows

Cisco TalosOct 24, 12:00 UTC · Oct 24, 2023Ransomware

60

Linux Variant of Clop Ransomware Spotted, But Uses Faulty Encryption Algorithm

The Hacker NewsFeb 8, 05:32 UTC · Feb 8, 2023Ransomware

57

New Linux variant of Clop Ransomware uses a flawed encryption

Security AffairsFeb 7, 23:53 UTC · Feb 7, 2023Ransomware

57

Released: Decryptor for Cl0p ransomware's Linux variant

Help Net SecurityFeb 7, 00:00 UTC · Feb 7, 2023Ransomware

57

ThreatsDay Bulletin: Defender 0-Day, SonicWall Brute-Force, 17-Year

The Hacker NewsApr 17, 14:47 UTC · Apr 17, 2026Ransomware in the wildCVE-2026-33825 CVE-2009-02381

60

LockBit Ransomware Abuses Windows Defender to Deploy Cobalt Strike Payload

The Hacker NewsAug 2, 08:07 UTC · Aug 2, 2022Ransomware

60

AI Agent Exploits Langflow RCE to Automate Database Ransomware Attack

The Hacker NewsJul 2, 09:13 UTC · Jul 2, 2026Ransomware in the wildCVE-2025-3248 CVE-2021-294411

60

Threat Roundup for January 15 to January 22

Cisco TalosJan 22, 20:35 UTC · Jan 22, 2021Ransomware

57

Cybercriminals mask malicious communications through Microsoft Teams relays

Help Net SecurityJun 16, 00:00 UTC · Jun 16, 2026Ransomware CVE-2023-52271 CVE-2025-61155 CVE-2025-10551

60

Ransomware attacks on industrial infrastructure doubled in 2022: Dragos

The RecordFeb 14, 00:00 UTC · Feb 14, 2023Ransomware

57

New Ransomware Group Exploiting Veeam Backup Software Vulnerability

The Hacker NewsJul 15, 00:00 UTC · Jul 15, 2024Ransomware CVE-2023-27532

60

Threat Spotlight: Cisco Talos Thwarts Access to Massive International Exploit Kit Generating $60M Annually From Ransomware Alone

Cisco TalosOct 6, 12:00 UTC · Oct 6, 2015Ransomware

57

Sophos XDR: Threat hunting through the entire security ecosystem

Help Net SecurityAug 9, 08:34 UTC · Aug 9, 2021Ransomware

60

Week in review: AWS S3 data encrypted without ransomware, data of 15k Fortinet firewalls leaked

Help Net SecurityJan 19, 00:00 UTC · Jan 19, 2025Ransomware in the wildCVE-2024-55591 CVE-2025-0282 CVE-2024-7344

60

Warlock Ransomware Hitting Victims Globally Through SharePoint ToolShe

Infosecurity MagazineAug 20, 12:00 UTC · Aug 20, 2025Ransomware

60

Celerium Compromise Defender detects and disrupts cyber compromise activity

Help Net SecurityJun 23, 00:00 UTC · Jun 23, 2023Ransomware

60

NSO Group partly disputes claim about use of U.S.

CyberScoopMay 1, 17:22 UTC · May 1, 2020Ransomware in the wild

60

Bl00dy Ransomware Gang actively targets the education sector

Security AffairsMay 12, 22:55 UTC · May 12, 2023Ransomware CVE-2023-27350

60

Microsoft announces Microsoft Defender for Business (for SMBs)

Help Net SecurityMay 2, 00:00 UTC · May 2, 2022Ransomware1

57

Microsoft Links Ongoing SharePoint Exploits to Three Chinese Hacker Groups

The Hacker NewsJul 22, 16:43 UTC · Jul 22, 2025Ransomware CVE-2025-49706 CVE-2025-49704 CVE-2025-53771+1 CVEs

60

Microsoft leads effort to disrupt illicit use of Cobalt Strike, a dangerous hacking tool in the wrong hands

CyberScoopApr 6, 16:00 UTC · Apr 6, 2023Ransomware in the wild

60

US, Australia, Canada warn of ‘fast flux’ scheme used by ransomware gangs

The RecordApr 3, 18:20 UTC · Apr 3, 2025Ransomware

57

Adversary Infrastructure Report 2020: A Defender’s View

Recorded FutureJan 2, 00:00 UTC · Jan 2, 2026Ransomware

57

DeadLock Ransomware Uses Polygon Smart Contracts For Proxy Rotation

Infosecurity MagazineJan 14, 14:20 UTC · Jan 14, 2026Ransomware

57

DoJ Seizes 145 Domains Tied to BidenCash Carding Marketplace in Global Takedown

The Hacker NewsJun 5, 10:19 UTC · Jun 5, 2025Ransomware

57