Cyber threats are coming in fast. Learn what you need to know to get ahead of them.

May 20, 2025

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May 20, 2025

Read in Browser

 
 

Greetings, Digital Defenders! šŸ›”ļø

Cyber threats are coming in fast: critical Intel chip flaws, stealthy botnets, upgraded phishing schemes, and a crackdown on TP-Link. Even Australia's human rights agency suffered a major data breach.

Also, don't miss the quick poll at the bottom: Is your home router safe from hackers?

Here’s what you need to know:

  • Critical flaw in all modern Intel chips revives Spectre-like attack fears
  • HTTPBot DDoS botnet hits gaming and tech sectors with precision strikes
  • Tax-themed phishing scam uses PowerShell to install malware
  • New tool can trick Windows into turning off Microsoft Defender
  • Australian human rights agency exposes hundreds of sensitive documents
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Zero-Day Download

Newly Discovered CPU Flaw Puts All Modern Intel Chips at Risk

Researchers at ETH Zürich have uncovered a critical vulnerability that affects all modern Intel CPUs, reigniting concerns tied to the long-feared Spectre class of attacks.

Source: asus.com.

The flaw allows unprivileged users to snoop on sensitive data in CPU cache and memory, effectively bypassing hardware security barriers.  

Users should install the latest Intel microcode updates to patch CVE-2024-45332 and protect against potential data leaks.

Windows Botnet Targets Gaming, Tech, and EdTech with Surgical DDoS Attacks

A new Windows-based botnet called HTTPBot is targeting gaming, tech, and education firms in China with pinpoint DDoS attacks. Using stealthy HTTP flood tactics, it disrupts key services like game logins and payment systems.

Although the current attacks focus on Chinese firms, companies worldwide in affected industries should stay alert—HTTPBot could easily spread beyond borders.

New Phishing Campaign Uses PowerShell to Deliver Malware via Tax-Themed Emails

Cybersecurity researchers at Qualys have uncovered a sophisticated malware campaign that uses a PowerShell-based shellcode loader to deliver the Remcos remote access trojan (RAT). The attack uses tax-themed phishing emails containing ZIP files that contain malicious Windows shortcut (LNK) files.

Users should avoid unexpected ZIP email attachments and properly configure PowerShell policies and antivirus protections.

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Snackable Bytes

  • Vulnerabilities can quietly wreck your system. Our roundup of the Best Vulnerability Management Software shows which tools can help you find and fix the cracks before attackers do.
  • Become a cybersecurity mastermind with seven expert-led courses and 210 hours to sharpen your skills and tackle the top threats.

šŸ›”ļø This section contains sponsored cybersecurity insights.

 

Threat Tracker

ā€˜Defendnot’ Disables Microsoft Defender by Faking Antivirus Registration on Windows

A security researcher has created "Defendnot," a tool that uses an undocumented Windows API to disable Microsoft Defender by registering a fake antivirus, even on systems without a real antivirus.

Source: irpro.com.

The tool works by tricking Windows into thinking another security tool is active, causing Defender to automatically turn off.

Windows users should regularly verify their antivirus status and be cautious about running untrusted software that could manipulate system security settings.

TP-Link Under US Scrutiny Over Alleged Security Risks and Chinese Government Ties

Networking giant TP-Link is facing mounting pressure in the U.S. as lawmakers urge a ban on its products. They cite national security risks, alleged ties to the Chinese Communist Party, and predatory pricing.

TP-Link, which holds a major share of the U.S. router market, denies the claims and rejects any Chinese government affiliation. 

Users should stay tuned, as researchers are likely to comment over the coming days on whether TP-Link devices pose a security risk.

Australian Human Rights Commission Discloses Data Breach Involving Sensitive Personal Documents

The Australian Human Rights Commission (AHRC) has disclosed a data breach caused by an internal error, which made around 670 sensitive documents publicly accessible between April 3 and May 5.

The exposed files, submitted through online complaint and project forms, may have included names, contact details, health information, and other personal data.

Affected individuals should monitor their personal data and contact the AHRC for support.

 

Security Tip of the Day

Is Your Router Hacked? Here’s How to Tell and What to Do

Your home Wi-Fi router is the gateway to your family’s digital life. It connects everything from mom’s phone and the kids’ computers to the living room smart TV—and hackers know it.

Protect Yourself Against AI Deepfake Impersonators

Source: eccu.edu.

Slower-than-usual browsing? Weird devices showing up on your network? Redirects to websites you didn’t intend to visit? Any of these could spell bad news: your router may have been sabotaged.

Here’s how to take back control of your hacked router:

  • Unplug your router from the internet
  • Perform a full factory reset
  • Change the default login username and password
  • Update your router’s firmware to the latest version
  • Enable strong encryption (preferably WPA3)
  • Turn off unused features like remote management and WPS
  • Enable your router’s built-in firewall
  • Consider upgrading to a router with built-in security

Your home router’s security is easy to overlook, but it’s key to protecting your digital life. These tips can help you prevent a hack (or stop it from happening again).

 

Security Question of the Day

How confident are you in your home network’s security?

šŸ’Ŗ Rock solid
😐 Could be better
😭 Probably hacked

Meet Our Writers:

Leon Yen

Leon Yen

Leon Yen is a cybersecurity expert and seasoned tech journalist with over a decade of experience, including founding a cyber risk startup and leading industry-focused research and reporting.

Liz Ticong

Liz Ticong

Liz Ticong is a tech writer specializing in AI and software tools, known for turning complex topics into clear, actionable insights through hands-on testing and analysis.

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