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Every story since Decipher went independent.

187
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OCT 27
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Intrusions

A New Chinese APT Takes the Stage

Active since at least 2022, UAT-7290 demonstrates a significant capacity for conducting deep-seated espionage while simultaneously functioning as an initial access group.

Dennis Fisher · 2 min
Vulnerabilities

React2Shell Attacks Continue to Build

After a peak of more than 430,000 attack sessions in late December, daily volumes targeting React2Shell have stabilized in the 300,000 to 400,000 range.

Dennis Fisher · 1 min
Vulnerabilities

IBM Warns of Critical Auth Bypass Bug in API Connect

IBM published updates for the affected versions of API Connect on Jan. 2., and urged organizations to update affected versions as soon as possible.

Dennis Fisher · 1 min
Vulnerabilities

Serious MongoDB Flaw CVE-2025-14847 Under Exploitation

MongoDB disclosed the vulnerability (CVE-2025-14847) on Dec. 19 and a few days later, a public exploit for it appeared online.

Dennis Fisher · 1 min

Is Kevin McCallister the Greatest Hacker in Movie History?

There may not be any computers in Home Alone, but few movie characters embody the old-school hacker ethos like Kevin McCallister does.

Dennis Fisher · 1 min

Threat Actors Target Unpatched Cisco AsyncOS Zero-Day

Threat actors are exploiting an unpatched zero-day vulnerability in Cisco AsyncOS software.

Lindsey O'Donnell-Welch · 2 min
Intrusions

Russian Hackers Target Misconfigured Edge Devices in ‘Concerning Evolution’ For Critical Infrastructure Attacks

Amazon researchers highlighted a “tactical pivot” by Russian GRU hackers who have been moving away from zero-day and N-day exploitation.

Lindsey O'Donnell-Welch · 2 min

The Enduring Hacker Legacy of Heat

It was 30 years ago this week that Michael Mann’s masterpiece Heat hit theaters like a semi T-boning an armored car. In addition to being a masterful heist movie and insightful depiction of the toll that obsession can exact, Heat is also a criminally underrated hacker movie.

Dennis Fisher · 1 min
Intrusions

Broad Exploit Activity Targets React2Shell Flaw

The vulnerability was disclosed publicly on Dec. 3 and researchers and threat intelligence teams immediately began seeing opportunistic and targeted exploitation attempts.

Dennis Fisher · 3 min
Policy

Government, Private Sector Officials Mull Telecom Security Woes

A year after Salt Typhoon’s telecom hack, private and public sector officials discussed next steps.

Lindsey O'Donnell-Welch · 4 min
Vulnerabilities

Critical Flaw CVE-2025-55182 Affects React Server Components

All developers using React Server Components are urged to upgrade immediately, and some apps that don’t include React Server Function endpoints could be vulnerable, as well.

Dennis Fisher · 2 min
Policy

New MuddyWater Campaign Hits Israeli Targets

The victims in Israel span multiple industries, including technology, engineering, manufacturing, local government, and education.

Dennis Fisher · 2 min
Intrusions

New Shai Hulud NPM Worm Emerges

Researchers from Wiz are currently tracking more than 25,000 affected repositories across approximately 350 unique users.

Dennis Fisher · 2 min
Policy

DoJ Sanctions Bulletproof Hosting Provider Used By Ransomware Groups

The provider, Media Land LLC, has been used by ransomware actors like Lockbit, BlackSuit, and Play, and its infrastructure has been leveraged across several distributed denial-of-service (DDoS) attacks against US companies and critical infrastructure.

Lindsey O'Donnell-Welch · 2 min
Vulnerabilities

Fortinet CVE-2025-64446 Under Active Attack

That vulnerability (CVE-2025-64446) affects several versions of FortiWeb and CISA  has added it to its Known Exploited Vulnerabilities catalog.

Dennis Fisher · 2 min
Intrusions

Marks and Spencer’s Profit Drop: The Financial Toll of Cyberattacks

The financial impacts of cyberattacks are hard to measure – but they lend critical context to conversations around security risk at the boardroom level.

Lindsey O'Donnell-Welch · 5 min

Google Wants to Snuff Out ‘Lighthouse’ Phishing Kit

Google is taking legal action “designed to dismantle the core infrastructure” of the Lighthouse phishing-as-a-service operation.

Lindsey O'Donnell-Welch · 2 min
Intrusions

APT Targets Cisco and Citrix Zero Days

The chain of discovery began with Amazon’s security honeypot service, MadPot, which detected exploitation attempts for the Citrix Bleed Two vulnerability (CVE-2025-5777) before its public disclosure

Dennis Fisher · 2 min
Vulnerabilities

Microsoft Warns of Exploited Windows Kernel Zero-Day

The important-severity flaw (CVE-2025-62215) has been exploited, said Microsoft.

Lindsey O'Donnell-Welch · 2 min
AI

Q&A: Sean Zadig of Yahoo on Employing AI in Security

There are plenty of challenges and pitfalls for security teams looking to deploy AI tools and Zadig said Yahoo is taking a measured, careful approach. This is a condensed and edited portion of our discussion.

Dennis Fisher · 4 min

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