InfoSecBulletin Cybersecurity for mankind
MSI attackers leaked the company’s firmware image signing keys, a crucial component for differentiating between legitimate and malicious updates. Over 200 MSI products are believed to be exposed.
Researchers have identified leaked firmware image signing keys and Intel’s BootGuard for MSI products. According to Alex Matrosov, CEO of firmware supply chain security platform Binarly, leaked firmware keys affect 57 MSI products, while leaked BootGuard keys affect 166 of the company’s products.
YouTube geo-blocks at least 4 Bangladeshi TV channels in India
Microsoft Patches Four Critical Azure and Power Apps Vulns
Qilin Ransomware topped April 2025 with 45+ data leak disclosures
SonicWall Patches 3 Flaws in SMA 100 Devices
Top Ransomware Actively Attacking Financial Sector: 406 Incidents Disclosed
Critical (CVSS 10) Flaw in Cisco IOS XE WLCs Allows RRA
CVE-2025-29824
Play Ransomware Exploited Windows CVE-2025-29824 as Zero-Day
Hacker exploited Samsung MagicINFO 9 Server RCE flaw
CISA adds Langflow flaw to its KEV catalog
Google Fixes Android Flaw (CVE-2025-27363) Exploited by Attackers
Firmware image signing keys are an essential part of the security infrastructure for hardware. The keys provide trust that the firmware is authentic and hasn’t been tampered with by anyone except the software developer or the device manufacturer.
Similarly, Intel Boot Guard is a processor safeguard that prevents the computer from running firmware images not published by the system manufacturer.
Exposing the keys poses significant risks to users as attackers with access to leaked keys can push malware-infected firmware images or firmware updates as legitimate.
Since firmware is often launched before the operating system starts, malicious code could fly under the radar of antivirus or other security measures. Attackers could also use the keys to modify the firmware, severely impacting the reliability of the device.
According to Binarly, the exposed devices include numerous models of MSI’s Stealth, Creator, Crosshair, Prestige, Pulse, Modern, Raider, Sword, Summit, Vector, and Katana series laptops. The complete list with specific models can be found here.
Earlier this year, the Money Message ransomware cartel published nearly 528 GB of data supposedly taken from the Taiwanese computer manufacturer Micro-Star International (MSI).
MSI confirmed that the company had suffered a cyberattack, with attackers supposedly demanding several million dollars in ransom for the stolen MSI source code. The company refused to pay the ransom.
MSI is a major information technologies player in the global market, with a presence in over 100 countries and a yearly revenue hovering close to $6 billion (TWD 180 billion).
