SonicWall firewall — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
2
occurrences
First Seen
November 6, 2025
Last Seen
December 4, 2025

Related Threat Clusters

  • Marquis Software Solutions Data Breach Exposes Customer Data of US Banks

    Marquis Software Solutions experienced a ransomware attack on August 14, 2025, leading to the exposure of sensitive customer information, including Social Security Numbers and names. The company serves numerous banks…

    6 articles · Updated December 3, 2025
  • SonicWall Blames State Actor for Customer Data Breach

    SonicWall reported that a state-sponsored threat actor conducted a brute-force attack on its MySonicWall cloud backup service, compromising firewall configuration files of all affected customers. An investigation by…

    3 articles · Updated November 6, 2025
  • SonicWall Investigates State-Backed Breach of Cloud Backup Service

    SonicWall reported unauthorized access to backup firewall configuration files in September 2025, attributed to a state-backed threat actor. The company engaged Mandiant for an investigation and communicated with…

    11 articles · Updated November 26, 2025

Recent Intelligence Reports

  • Fintech Marquis Says Ransomware Attackers Stole Customer Data — Silicon · December 4, 2025
  • SonicWall pins attack on customer portal to undisclosed nation — Cyberscoop · November 6, 2025

CVSS v3.1 Breakdown