Human Risk Management Blog

Keeping you informed. Keeping you aware.
Stay on top of the latest in security including social 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

FBI Warns U.S. Companies About Maze Ransomware

The FBI is warning U.S. companies about a series of recent ransomware attacks in which the perpetrator, sometimes posing as a government agency, steals data and then encrypts it to ...

KnowBe4 Has A Blow-Out 2019 Fourth Quarter

In the fourth quarter of 2019, KnowBe4 reached 54% growth over Q4 2018, increasing customer accounts to well over 30,000.

Phishing Remains the Most Widespread Risk

As organizations look to improving their defenses, it’s worth remembering that attackers usually get through those defenses by manipulating the human beings those security measures are in ...

Tax Season Warning: the IRS on Social Engineering

We have had occasion to warn of this before, but as 2020 begins and April 15th approaches, it may be worth another mention. The US Internal Revenue Service wants taxpayers to keep a sharp ...

2020 Cybersecurity Predictions by KnowBe4’s Experts

With data breaches hitting headlines daily, IT pros are constantly concerned about the next big threat. Whether it’s ransomware, phishing, or completely new attack vectors, there’s always ...

December 2019 Updates to our Data Protection Notices

In support of upcoming changes to data privacy laws we are making a few updates to our privacy policy. We have added language to help provide our customers clarity on KnowBe4’s ...

Major Dutch University Still Fighting Ransomware Downtime; Expert Says Russian Hacker Group Responsible

Major Dutch Maastricht University was still trying to recover from a crippling cyber attack nearly a week after the university's computer systems were infected by ransomware. New ...

Phishing in a Port

Among the ransomware that caused so much disruption in the latter half of 2019 was the strain known as Ryuk, and Ryuk has typically been spread by phishing. According to ZDNet, a recent ...

[LEGAL ALERT] What You May Have Overlooked in the Run Up to CCPA Compliance

LAW.COM had a very good reminder that you really need to keep in mind. Here is an extract: "With just days to go before the California Consumer Privacy Act (CCPA) compliance date, some ...

[Heads-up] Ransomware attack forces Arkansas CEO to fire 300 employees days before Christmas

The chief executive officer of a telemarketing company in Sherwood, Arkansas has let go 300 employees after the company failed to recover from a ransomware infection a few months back.

PayPal Scammers Want More than Just Your PayPal Credentials

Researchers at ESET have come across phishing sites that try to steal PayPal logins along with a wide range of personal and financial information. The scam begins with phishing emails ...

Veterans are High-Payoff Social Engineering Targets for Scammers

Veterans are particularly valuable targets for various types of social engineering attacks, according to Mary K. Talbot at the Providence Journal. Veterans are often respected leaders in ...

WIRED: "The Decade Big-Money Email Scams Took Over"

Excellent article in WIRED, where they observed that In the last few years, the "Nigerian prince" scams have gotten a major upgrade. Here is an extract and a link to the full article:

FBI Issues Alert For "Sleeper" LockerGoga and MegaCortex Ransomware

The FBI has issued a warning to private industry recipients to provide information and guidance on the LockerGoga and MegaCortex Ransomware.

Star Wars Rogue One: A Phish Story

We’ve heard that scammers are exploiting the release of the new Star Wars movie by distributing malware disguised as free copies of the film. But what if we turned this on its head and ...

These Aren't the Droids You're Looking For

Researchers at Kaspersky have identified sixty-five malicious files masquerading as online copies of Star Wars: The Rise of Skywalker, TechRepublic reports. The files are spread via ...

How Phishing is Evolving

Attackers are always using new tactics to stay ahead of defenders, and Microsoft’s Office 365 Threat Research Team describes three noteworthy phishing techniques they’ve observed in 2019. ...

Whaling: Like Phishing, but After Bigger Game

Organizations have to acknowledge their responsibility for ensuring their employees are able to recognize targeted phishing attacks, according to James McGachie, Legal Director of DLA ...


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