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

FIN12 Threat Group Speeds Up Ransomware Attacks to Just Two Days After Initial Access

As detection times are reducing across the board, threat groups are improving their craft and are prioritizing speed as the key ingredient in ransomware attacks.

Organizations Have a 76% Likelihood of a Successful Cyberattack in the Next Year

New data from TrendMicro and Ponemon shows how almost organizations globally are not fully prepared for the looming threat of almost-certain cyberattacks.

Man Convicted for $23 Million Phishing Scam Against the US DoD

A man in California has been convicted for stealing $23.5 million from the US Department of Defense in a phishing attack. The Justice Department explained in a press release that the man, ...

Phishing Campaign Uses Simple Email Templates

A phishing campaign is using short, terse emails to trick people into visiting a credential-harvesting site, according to Paul Ducklin at Naked Security. The email informs recipients that ...

75% of SMBs Would Only Survive Seven Days or less from a Ransomware Attack

With ransomware attacks on the increase, new data shows a material portion of small and medium business organizations are completely ill-equipped to address an attack.

Half of IT Leaders Say their Non-Technical Staff are Unprepared for a Cyber Attack

New data shows IT leadership believes users outside of IT create a “continued significant risk to organizations” despite having a layered security strategy to prevent attacks.

[EYE OPENER] The Ransom Payment is Only 15% of The Total Cost of Ransomware Attacks

As the number of ransomware attacks has increased 24% over the previous year, security researchers estimate the total associated attack costs to be just over 7 times higher.

Criminal Gang Impersonates Russian Government in Phishing Campaign

Researchers at IBM Security X-Force are tracking a financially motivated cybercriminal group called “Hive0117” that’s impersonating a Russian government agency to target users in Eastern ...