KnowBe4 Blog

Keeping you informed. Keeping you aware.
Stay on top of the latest in human and agent security including social and prompt engineering, ransomware and phishing attacks.

Stu Sjouwerman

Founder and Executive Chairman

Stu Sjouwerman (pronounced “shower-man”) is the Founder and Executive Chairman of KnowBe4, Inc., which hosts the world’s most popular integrated security awareness training and simulated phishing platform, with over 54,000 organization customers and more than 50 million users. A serial entrepreneur and data security expert with 30 years in the IT industry, Stu was the co-founder of Inc. 500 company Sunbelt Software, a multiple award-winning anti-malware software company that was acquired in 2010.


Recent Posts

Russian Spear-Phishing Campaign Targets WhatsApp Accounts

The Russian threat actor “Star Blizzard” has launched a spear-phishing campaign attempting to compromise WhatsApp accounts, according to researchers at Microsoft. The operation targets ...

Malvertising Campaign Abuses Google Ads to Target Advertisers

Researchers at Malwarebytes are tracking a major malvertising campaign that’s abusing Google Ads to target individuals and businesses interested in advertising.

Threat Actors Abuse Google Translate to Craft Phishing Links

Threat actors are abusing Google Translate’s redirect feature to craft phishing links that appear to belong to Google, according to researchers at Abnormal Security.

Phishing Campaign Attempts to Bypass iOS Protections

An SMS phishing (smishing) campaign is attempting to trick Apple device users into disabling measures designed to protect them against malicious links, BleepingComputer reports.

Your KnowBe4 Compliance Plus Fresh Content Updates from December 2024

Check out the December updates in Compliance Plus so you can stay on top of featured compliance training content.

Ransomware Gangs Claimed More Than 5,000 Attacks in 2024

Ransomware groups claimed responsibility for 5,461 attacks in 2024, with 1,204 of these attacks being publicly confirmed by victim organizations, according to Comparitech’s latest ...

First Ever Magic Quadrant™ for Email Security Platforms by Gartner®

In cybersecurity, email has always been a critical concern. However, we feel the new 2024 Gartner® Magic Quadrant for Email Security Platforms™ has signaled a shift in how we approach ...

Your KnowBe4 Fresh Content Updates from December 2024

Check out the 52 new pieces of training content added in December, alongside the always fresh content update highlights, new features and events.

Japan Attributes More Than 200 Cyberattacks to China Threat Actor "MirrorFace"

Japan’s National Police Agency (NPA) has attributed more than 200 cyber incidents over the past five years to the China-aligned threat actor “MirrorFace,” Infosecurity Magazine reports.