PLUS: 400K WordPress Sites Exposed ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ 

Mar 13, 2026

Read in Browser

Mar 13, 2026

Read in Browser

Cybersecurity Insider Header

Attackers are getting creative — and faster.

A destructive wiper claim hits a global medtech giant, and a WordPress flaw exposes hundreds of thousands of sites. 

Meanwhile, an Active Directory bug opens the door to SYSTEM control, Microsoft races to patch dozens of flaws, and researchers reveal how easily AI agents can spill sensitive data.

Read past newsletters here.

Here’s what you need to know:

  • Hacktivists claim destructive wiper attack on Stryker
  • SQL injection flaw exposes 400K WordPress sites
  • Active Directory bug enables SYSTEM-level takeover
  • Microsoft patches dozens of Windows and Office flaws
  • Study shows AI agents can leak sensitive data 
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Zero-Day Download

Hacktivists Claim Destructive Wiper Attack on Stryker

A cyberattack hit medical technology giant Stryker on March 11, disrupting operations and cutting employee access to internal systems across multiple countries.

The attack reportedly impacted Stryker’s Microsoft environment, locking employees in multiple countries out of devices.

Hacktivists Claim Destructive Wiper Attack on Stryker

Source: ChatGPT

The investigation into the incident is ongoing.

Maintain offline, immutable backups, closely monitor identity and device management systems for abnormal administrative actions, and test incident response plans.

SQL Injection Flaw Exposes 400K WordPress Sites

A vulnerability in Elementor’s Ally accessibility plugin could allow attackers to extract sensitive data from vulnerable WordPress databases. 

The flaw stems from improper input sanitization that allows a user-controlled URL parameter to be injected into an SQL query and potentially impacts over 400,000 installations.  

A patch has been released for the issue.

Patch to the latest version, enforce least-privilege database access, and use a web application firewall to detect and block suspicious SQL injection activity. 

Active Directory Vulnerability Enables SYSTEM Takeover

Microsoft patched an Active Directory Domain Services vulnerability that could allow attackers with limited access to escalate privileges to SYSTEM-level control. 

The flaw allows attackers to insert crafted Unicode characters into SPN and UPN entries, creating deceptive duplicates that bypass Kerberos safeguards and potentially enable lateral movement, service disruption, or broader domain compromise.

Microsoft has released a patch for the vulnerability.

Apply the latest Windows patches — especially on domain controllers — restrict who can modify SPNs, and monitor Active Directory logs for unusual SPN/UPN changes or suspicious Kerberos activity.

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Wiper Attack Reality Check: If systems were wiped tonight…

🛡️ Ready to Recover – Tested offline backups and clear recovery plans.
⚠️ Somewhat Prepared – Backups exist but recovery is uncertain.
🔥 Not Ready – A wipe would severely disrupt our core operations.

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Threat Tracker

Microsoft Patches Dozens of Windows and Office Flaws

Microsoft’s recent Patch Tuesday fixed 78 vulnerabilities, including critical Office flaws that could allow attackers to execute code simply by previewing a malicious document. 

Researchers warn two Office flaws can be exploited through the Windows Preview Pane — meaning a malicious document could trigger code execution without being opened.

Microsoft Patches Dozens of Windows and Office Flaws

Source: ChatGPT

The update also fixes an Excel Copilot data leak risk and a high-severity bug discovered by an autonomous AI agent, underscoring growing AI involvement in vulnerability discovery.

Apply the latest patches, build layered defense with zero trust solutions, and temporarily disable the Windows Preview Pane if Office patches cannot be applied immediately.

Study Shows AI Agents Leak Sensitive Data

Researchers from MIT, Harvard, Stanford, and other institutions found that autonomous AI agents can be easily manipulated into leaking sensitive data and performing harmful actions. 

In the Agents of Chaos study, researchers gave AI agents access to enterprise-style systems, including email, messaging, file storage, and shell commands.

Within two weeks, attackers tricked the agents into exposing Social Security numbers, bank details, and medical records — highlighting a major governance gap as organizations deploy AI agents without controls to stop misuse.

Implement strict data-layer governance for AI agents, including authenticated access controls, and use data loss prevention solutions.

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Security Tip of the Day

How Secure Is Your AD Environment?

Active Directory (AD) is the backbone of identity and access management in many organizations, making it a prime target for attackers seeking privilege escalation and lateral movement.

How Secure Is Your AD Environment?

Source: ChatGPT

How to harden your Active Directory environment:

  • Apply the latest patches, disable legacy authentication protocols like NTLM, and use Active Directory tools.
  • Apply least privilege, privileged access management (PAM), and tiered administrative access to limit who can make changes within Active Directory.
  • Monitor for suspicious changes to SPNs, group memberships, and authentication events while regularly auditing configurations, service accounts, and permissions for potential weaknesses.

Active Directory security requires ongoing management, including limiting privileges, monitoring identity changes, and addressing legacy weaknesses to reduce the risk of broader domain compromise.

Meet Our Writer:

Ken Underhill

Ken Underhill

Ken Underhill is an award-winning cybersecurity professional, bestselling author, and seasoned IT professional. He holds a graduate degree in cybersecurity and information assurance from Western Governors University, bringing years of hands-on experience to the field.

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