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

More Than 33,000 People in the UK Have Been Hacked Over the Past Year

Action Fraud, the UK’s national fraud and cyber crime reporting service, warns that more than 33,000 people have reported that their online accounts have been hacked over the past year.

Nearly Two-Thirds of IT Leaders Have Fallen For Phishing Attacks

Sixty-four percent of IT leaders have clicked on phishing links, a new survey by Arctic Wolf has found. Despite this, 80% of these same professionals are confident their organization ...

Cyber Attackers are Adopting a “Mobile First” Attack Strategy

With 16+ billion mobile devices in use worldwide, new data sheds light on how bad actors are shifting focus and tactics to put attacks into the victim’s hands.

KnowBe4's Cybersecurity Experts Shine at Barnes & Noble in New York City

New York City's iconic Barnes & Noble on 5th Avenue recently featured the newly released books of two of KnowBe4's leading cybersecurity experts: Chief Human Risk Management Officer ...

North Korean IT Worker Threat: 10 Critical Updates to Your Hiring Process

KnowBe4 was asked what changes were made in the hiring process after the North Korean (DPRK) fake IT worker discovery. Here is the summary and we strongly suggest you talk this over with ...

FBI Warns Scammers Are Targeting Law Firms For Phony Debt Collections

The U.S. FBI warns that scammers are attempting to trick law firms into transferring money as part of a phony debt collection scheme.

Phishing Attacks Are Abusing Legitimate Services to Avoid Detection

Microsoft warns that threat actors are abusing legitimate file-hosting services to launch phishing attacks. These attacks are more likely to bypass security filters and appear more ...

UK Company Hacked After Accidentally Hiring North Korean Cybercriminal

In a shocking turn of events, an unnamed company based in the UK has fallen victim to a sophisticated cyber attack after inadvertently hiring a North Korean hacker as a remote IT worker.

AI-Enhanced Cyber Attacks Tops the List of Data Security Threats

AI is quickly becoming the basis for more cyber attacks, leading organizations to realize the risk it presents. A new report now shows that AI-enhanced cyber attacks are now the top ...