How Hackers Exploit Microsoft Teams in Social Engineering Attacks

Attackers are using Microsoft Teams calls to trick users into installing the Matanbuchus malware loader, which frequently precedes ransomware deployment, according to researchers at ...

July 25, 2025 KnowBe4 Team

Warning: Ransomware Attacks Surged by 63% Last Quarter

Ransomware attacks increased by 63% year-over-year in the second quarter of 2025, with a total of 276 publicly disclosed incidents, according to a new report from BlackFog.

July 22, 2025 Roger Grimes

Ransomware Trends in 2025

I’ve been following ransomware since the first one, the AIDS Cop Trojan, was released in December 1989.

June 3, 2025 KnowBe4 Team

New Unrestricted AI Tool Can Assist in Cybercrime

Researchers at Certo warn that a new AI chatbot called “Venice[.]ai” can allow cybercriminals to easily generate phishing messages or malware code.

May 23, 2025 KnowBe4 Threat Lab

Impersonating Meta, Powered by AppSheet: A Rising Phishing Campaign Exploits Trusted Platforms to Evade Detection

Since March 2025, the KnowBe4 Threat Labs team has observed a surge in phishing attacks that exploit Google’s AppSheet platform to launch a highly targeted, sophisticated campaign ...

May 22, 2025 Javvad Malik

The Ransomware Threat: Still Alive and Kicking

Many organizations, after a period of relative quiet, might believe the ransomware bubble has burst. The headlines may have shifted, and other emerging cyber threats might seem to ...

May 7, 2025 Cindy Zhou

Talos Report: Phishing Attacks Surged in Q1 2025

Phishing was the initial access vector in 50% of attacks during the first quarter of 2025, according to a new report from Cisco Talos.

April 23, 2025 Stu Sjouwerman

Warning: Ransomware Remains a Top Threat for SMBs

A new report from Sophos found that ransomware attacks accounted for over 90% of incident response cases involving medium-sized businesses in 2024, as well as 70% of cases involving small ...

April 17, 2025 Stu Sjouwerman

Lack of Security Awareness Tops List of Obstacles to Cyber Defense

Most organizations cite low security awareness among employees as the biggest barrier to defending against cyberattacks, according to a new survey by CyberEdge Group.

April 15, 2025 Stu Sjouwerman

UK Organizations Cite Phishing as the Most Disruptive Type of Cyberattack

Phishing was the most prevalent and disruptive type of attack experienced by UK organizations over the past twelve months, according to the British government’s Cyber Security Breaches ...

KnowBe4 Blog

Ransomware

View Topics