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

U.S. Universities are the Target of Chinese Hackers Seeking Undersea Military Secrets

Schools like MIT and the University of Hawaii are the focus of Chinese hackers looking for research hubs or field experts at universities tied to Navy programs.

Cyber Attacks on Financial Institutions are the Modern-Day Bank Robbery

The financial sector has long been a target of cyber thieves. But despite their robust security postures, they continue to be the focus of some of the most innovative attack campaigns.

UK’s Police Federation Hit By Ransomware

The U.K.’s Police Federation has confirmed it has been hit by a cyberattack. The union-like organization, representing 119,000 police officers across the 43 forces in England and Wales, ...

WOW, Phishing Attacks Are Now More Common Than Malware!

Microsoft’s security team is uniquely positioned to analyze trends in cyber security threats. Their frequent Security Intelligence Reports (SIR) are an excellent indicator of these ...

Beazley Data Reveals A 133% Increase In Business Email Compromise Incidents From 2017 To 2018

Business email compromises (BEC) accounted for 24% of the overall number of incidents reported to Beazley Breach Response (BBR) Services in 2018, compared to 13% in 2017, according to a ...

Bots Impersonate Organizations to Spread Disinformation

Four congressmen have written to the FBI to request an investigation into social media accounts that are impersonating veterans’ organizations in order to spread fake news, according to ...

[Heads-up] Cybercriminals Are Moving To Mobile Phishing for Gift Cards Scams

Scammers are shifting to SMS to carry out business email compromise (BEC) attacks, since text messaging offers less visibility to the victim and more flexibility to the attacker, says ...

Another Major Hack Of Singapore Government By Russian Cyber Criminals

SINGAPORE Straits Times reported that e-mail log-in information of employees in several government agencies and educational institutions, as well as details of more than 19,000 ...

Phishing campaign targets Instagram users with fake copyright notices

A new phishing campaign targeting Instagram users is using fake copyright infringement notices to steal user credentials.

CISOs: Users and Collaborative Security Efforts are the Key to Protecting the Organization from Attack

Cisco’s CISO Benchmark Report 2019 focuses on the need for security collaboration between internal teams and the inclusion of users as part of an effective cybersecurity program.