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

Real Cyberattack as Phishbait for a Scammer

Scammers are exploiting a real “cyber incident” at a Riverhead New York high school to send out robocalls that claim to be coming from the local police department, RiverheadLOCAL reports.

Credential-Harvesting Phishing Campaign Urges Review of Spam

Researchers at MailGuard have observed a phishing campaign that’s using phony “spam notification” emails that purport to come from Microsoft Office 365. The emails tell recipients that an ...

Victims: After a Data Breach, Changing Passwords and Good Password Hygiene Remain Unimportant

New shocking data shows how unconcerned victim users are after being notified of a data breach involving their credentials, personal information, and even social media accounts.

New TSA PreCheck Scam Seeks to Collect Your Personal and Credit Card Details

Doing one of the best jobs impersonating a website ever seen, this new scam attempts to take those renewing or initially signing up through a believable process that most would fall for.

Half of All Organizations Have Had Employees Approached to Aid in Ransomware Attacks

Partially due to the shift to working remotely, cybercriminals are finding some resemblance of success in getting internal assistance, begging the question of what to do about it.

SideCopy: How an Intelligence Service Uses Phishbait

Researchers at Malwarebytes offer more details on a spear phishing campaign run by a Pakistani threat actor that’s come to be known as “SideCopy.” The campaign was first reported by ...

New Phishing Campaign has Fake DHL Shipping

Researchers at Avanan have spotted a new phishing campaign that’s impersonating DHL with phony shipping notifications. The emails inform the recipients that they need to update their ...

Your KnowBe4 Fresh Content Updates from November 2021

Check out the 28 new pieces of training content added in November, alongside the always fresh content update highlights.

[Heads Up] First Omicron Phishing Attack Spotted In The UK

Bleepingcomputer had the scoop. Phishing actors have quickly started to exploit the emergence of the Omicron COVID-19 variant and now use it as a lure in their malicious email campaigns. ...