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

QBot Malware Attacks Use SVG files to Perform HTML Smuggling

QBot malware phishing campaigns have adopted a new distribution method using SVG files to perform HTML smuggling that locally creates a malicious installer for Windows.

Microsoft Warns of Signed Drivers Being Used to Terminate AV and EDR Processes

The malicious abuse of several developer program accounts in Microsoft’s Windows Hardware Developer Program allowed threat actors to have malware evade detection.

The Number of Phishing Attacks Grows 15% in One Quarter, Reaching an All-Time High

New data shows that while ransomware remains somewhat flat, massive increases in business email compromise and response-based email attacks were seen last quarter.

New Polymorphic Wiper Malware Leaves Attacked Environments “Unrecoverable”

As an apparent method of political commentary on the war in Ukraine, the new Azov wiper uses a mix of intermittent overwriting and trojanizing Windows binaries to annihilate its’ victims.

Spear Phishing Campaign Targets Japanese Political Organizations

Researchers at ESET warn that a Chinese-speaking threat actor dubbed “MirrorFace” targeted Japanese political organizations with spear phishing emails in the run-up to the Japanese House ...

"How I lost my dog and almost my Google credentials..."

A well-trained Knowster posted: "I lost my dog this weekend and my mother in law was trying to be helpful and put my real phone number on a few social media posts she made. Now im getting ...

KnowBe4 Named a Leader in the Winter 2023 G2 Grid Report for Security Orchestration, Automation, and Response (SOAR)

We are excited to announce that KnowBe4 has been named a leader in the Winter 2023 G2 Grid Report for Security Orchestration, Automation, and Response (SOAR) for the PhishER platform for ...

KnowBe4 Named a Leader in the Winter 2023 G2 Grid Report for Security Awareness Training

We are thrilled to announce that KnowBe4 has been named a leader in the latest G2 Grid Report that compares Security Awareness Training (SAT) vendors based on user reviews, customer ...

XLL Files Used to Deliver Malware

Attackers are using XLL files to embed malicious code in Office documents, according to researchers at Cisco Talos. Microsoft is phasing out the ability to execute VBA macros in Office ...

Now BEC Attacks Steal Physical Goods

The Federal Bureau of Investigation (FBI), the Food and Drug Administration Office of Criminal Investigations (FDA OCI), and the US Department of Agriculture (USDA) have released a joint ...

Social Engineering, Money Mules, and Job Seekers

A small town in Manitoba, WestLake-Gladstone (population about 3300), fell victim to a social engineering campaign. The municipal government seems to have been a target of opportunity, ...

Hospitals Warned of Royal Ransomware Attacks by U.S. Department of Health

This brand new ransomware gang is on the attack and, despite them being new to the game, are coming out of the gate attacking the healthcare sector and asking for millions in ransom.

Less Than One-Third of Organizations Leverage Multiple Authentication Factors to Secure Their Environment

Demonstrating a complete lack of focus on the need for additional authentication factors, surprising new data highlights a material security gap that enables cybercrime.

Ten Charged with BEC Healthcare Scheme That Took More than $11 Million

Tricking five state Medicaid programs, two Medicare Administrative Contractors, and two private health insurers, the scammers posed as hospitals to alter payment details.

Cybersecurity Experts Weigh in on Modern Email Attacks

Abnormal Security’s CISO, Mike Britton consolidates some of the best advice from a three-part webinar series on the current state of risk found in email-based cyberattacks

Interest in Infostealer Malware Within Cyberattacks Spikes as MFA Fatigue Attacks Increase

New analysis of dark web forums shows an increase in discussions around the use of infostealer malware as part of both the first attack within a campaign or as part of an initial access ...

October and November Have Been the Two Busiest Months for Ransomware

Trending data going back to January of 2020 shows that ransomware attacks are continually increasing in number with unusual highs in the 4th quarter.

Utility Bill is the New Phishbait for Cybercriminals

An SMS phishing (smishing) campaign is impersonating utility providers in the US, Cybernews reports. Researchers at Enea AdaptiveMobile Security spotted the campaign, which informs ...

Ughh. FBI’s Vetted Threat Sharing Network ‘InfraGard’ Hacked

Investigative reporter Brian Krebs reported December 13, 2022 that "InfraGard, a program run by the U.S. Federal Bureau of Investigation (FBI) to build cyber and physical threat ...


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