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

Pervasive Ransomware Infection Cost German Software Company Pilz Tens Of Millions Of Euros

A pervasive ransomware infection cost the German automation company Pilz an estimated tens of millions of euros, says Jan Tournois, director of the Dutch department of the multinational.

You Can’t Always Trust a Dot-Gov Domain

It may be easier than one thinks to register a dot-gov domain, according to KrebsOnSecurity. People have tended to regard urls with the top-level domain dot gov as generally reliable, but ...

Business Email Compromise Topples Over $26 Billion in Losses

This lucrative business of tricking companies into fraudulently transferring funds into cybercriminal-owned bank accounts is showing signs of growing. Scammers use many forms of attack to ...

Global Utilities See Cyberattacks as Greater Threat to Operations than IT with Half Experiencing Outages

Global industrial organizations are seeing and feeling the effects of cyberattacks, recognizing the material impact potential upon operations.

Over Half of SMBs Experience Phishing and Social Engineering Attacks

The assertion that SMBs aren’t a cyber-target is officially dead. SMBs are victims of the very same attacks as enterprises in growing numbers, according to new research.

Insurers Get Serious About Social Engineering Attacks Citing a Lack of Awareness as the Problem

With specific endorsements to protect against social engineering scams, insurers are realizing where the true risk lies in cyberattacks and make recommendations of how to mitigate it.

Top Security Trends in Europe

Defending your organization against cyber threats and phishing attacks is not a one-size-fits-all approach. Cultural differences, language barriers, regional policies and more can mean ...

Merchant fined for failing to train employees — Former NYDFS Superintendent Vullo Talks About Cybersecurity Regs

Mark Harrop, Director of Communications, Corporates at Thomson Reuters made me aware of a very interesting interview with Maria Vullo, the former Superintendent of New York’s Department ...

‘Professional’ ransomware gang targets 1,800 large organizations worldwide, Dutch investigators find

Filip Truta at Bitdefender blogged: "A confidential report from the Netherlands’ National Cyber Security Center warns that ransomware operators are targeting at least 1,800 large ...

Phishing scams on the up in the Netherlands

Mina Solanki, an expat in Holland wrote: "After years of declining, phishing is on the up. In 2018, the (monetary) damage caused by it had almost quadrupled compared to previous years. ...