SecurityBrief US - Technology news for CISOs & cybersecurity decision-makers
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American Edition · 2026

The Ultimate Guide to Malware

A curated American edition of TechDay news, analysis, interviews, reviews, job moves, and related resources for Malware.

What to know about Malware

Malware represents a broad category of malicious software designed to infiltrate, damage, or disrupt computer systems and networks. From ransomware that locks users out of their data to spyware that quietly steals information, malware continues to evolve in sophistication and reach. Our recent stories cover a wide range of malware threats impacting individuals, businesses, and critical infrastructure, illustrating the diverse strategies cybercriminals use to exploit vulnerabilities.

Delving into these stories provides readers with insights into how malware campaigns operate, the latest trends in attack vectors, and expert advice on defense mechanisms. Understanding malware not only alerts individuals and organisations to potential risks but also guides them in strengthening their digital security posture. Stay informed about the ever-changing malware landscape to better safeguard your data and systems from emerging cyber threats.

American Malware News

Regional stories with direct local relevance

Analyst Insights

Research and market analysis connected to Malware

Expert Columns

Interviews

Interviews and video coverage from the network

Recent Malware News

US charges Russian in Qakbot cybercrime, seizes USD $24m
Cybersecurity

US charges Russian in Qakbot cybercrime, seizes USD $24m

The US has charged Russian Rustam Gallyamov for running the Qakbot malware network, seizing USD $24m in cryptocurrency from cybercrime activities.

Wed, 28th May 2025

Qilin ransomware attack hits sheriff, $48K spent on recovery
Data breach

Qilin ransomware attack hits sheriff, $48K spent on recovery

Ransomware gang Qilin claimed an April 2025 attack on Tennessee's Hamilton County Sheriff's Office, demanding USD $300,000, with no ransom paid.

Sat, 10th May 2025

FBI warns of rising threat from Medusa ransomware group
Threat detection

FBI warns of rising threat from Medusa ransomware group

Concerns grow over the Medusa ransomware group's threats to critical infrastructure, with attacks on over 300 victims reported amidst escalating cybersecurity risks.

Sun, 16th Mar 2025

Microsoft & Fortra's joint fight against Cobalt Strike abuse
Critical Infrastructure

Microsoft & Fortra's joint fight against Cobalt Strike abuse

Microsoft, Fortra, and Health ISAC unite against cybercrime, significantly reducing Cobalt Strike misuse by 80% through international cooperation and proactive strategies.

Wed, 12th Mar 2025

Iran uses AI to speed cyber & influence operations
Threat intelligence

Iran uses AI to speed cyber & influence operations

Generative AI is helping Tehran speed up phishing, malware and influence campaigns, while making attacks harder to attribute.

Yesterday

Zscaler flags Claude chat malware campaign on Macs
Trends & Predictions

Zscaler flags Claude chat malware campaign on Macs

Mac users were lured via Google ads and shared Claude chats into installing malware that steals passwords, files and wallet data.

Yesterday

AI speeds ransomware, forcing firms to focus on recovery
Disaster Recovery

AI speeds ransomware, forcing firms to focus on recovery

Ransomware recovery plans must now verify data integrity, as AI helps attackers move faster across connected systems, Index Engines says.

Last week

The Gentlemen tops ransomware rankings in Q2 review
Small Business

The Gentlemen tops ransomware rankings in Q2 review

Ransomware activity stayed elevated in Q2, with 2,252 named victims and The Gentlemen overtaking Qilin to top the rankings.

Last week

WatchGuard warns of shadow AI & weak security habits
Virtual Private Networks

WatchGuard warns of shadow AI & weak security habits

Persistent gaps in basic cyber hygiene are leaving small businesses exposed, with most staff reusing passwords and many using unauthorised AI tools.

Last week

AI now drives live cyber attacks, Check Point says
AI Ethics & Governance

AI now drives live cyber attacks, Check Point says

Security teams face faster, harder-to-trace intrusions as AI is now being used to write attack code and run deception during breaches.

Last week

Financial services faces most cyberattacks per device
Virtual Private Networks

Financial services faces most cyberattacks per device

Legacy systems and slow patching are leaving banks exposed, with financial services hit by more than double the average cyberattacks per device.

Last week

Check Point sees June cyberattacks jump 17% year on year
Network Infrastructure

Check Point sees June cyberattacks jump 17% year on year

Business and public sector organisations faced 2,270 attacks a week in June, as ransomware rose 33% and GenAI use exposed sensitive data.

This month

ESET warns of AI abuse & quishing surge in attacks
Threat intelligence

ESET warns of AI abuse & quishing surge in attacks

Malicious AI skills are helping criminals steal data and run malware, while QR-code phishing climbed 146% in the latest ESET report.

This month

Google Cloud links Wiz exposure data with threat intel
Digital Transformation

Google Cloud links Wiz exposure data with threat intel

Security teams could cut alert overload as Google ties exposed assets to live attacker activity, helping prioritise the riskiest flaws first.

This month

China-aligned spies target university Roundcube servers
Patching

China-aligned spies target university Roundcube servers

Sensitive physics and engineering research at US and Canadian universities may have been exposed after hackers used Roundcube flaws to enter mail servers.

This month

Anthropic widens Fable 5 safeguards & rates jailbreaks
Patching

Anthropic widens Fable 5 safeguards & rates jailbreaks

New safeguards will let Fable 5 block more harmful cyber prompts, as Anthropic also seeks a common scale for jailbreak risk.

This month

Google disrupts NetNut proxy network in FBI operation
Virtual Private Networks

Google disrupts NetNut proxy network in FBI operation

Millions of consumer devices were pulled into a botnet used for hacking and espionage, prompting Google to disable apps and accounts.

This month

Barracuda warns of Microsoft phishing & malware rise
Threat intelligence

Barracuda warns of Microsoft phishing & malware rise

Attackers are increasingly using genuine Microsoft pages and browser tricks to steal session tokens, passwords and spread malware, Barracuda says.

Last month

Cisco and OpenAI outline AI's growing role in cyber defence
Network Infrastructure

Cisco and OpenAI outline AI's growing role in cyber defence

Cisco and OpenAI say AI agents are reshaping cyber defence by helping organisations detect, fix and respond to security threats more quickly.

Last month

NCC Group flags AI fraud platform Kitana in attacks
Manufacturing

NCC Group flags AI fraud platform Kitana in attacks

Consumers on hospitality and eCommerce sites are at risk of having passwords and payment details stolen through fake webpages run by the platform.

Last month