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

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 ...

[CASE STUDY] New-school Approach to Training and Simulated Phishing Shines Over Traditional LMS

A U.S.-based enterprise manufacturing organization cut their Phish-prone Percentage™ (PPP) by more than 80% after five months using the KnowBe4 security awareness training and simulated ...

[EYE OPENER] How ChatGPT Can Be Used For Social Engineering

ChatGPT could give Google a serious run for its money. We are not quite there yet, but the capabilities are rapidly improving. Just have a look at the command I gave it. In 5 seconds the ...

Incident Response Actions are Systematically Reversed by Hackers to Maintain Persistence

Analysis of attacks on two cellular carriers have resulted in the identification of threat actions designed to undo mitigations taken by security teams mid-attack.

New Modular Attack Chain Found That Allows Attackers to Change Payloads Mid-Breach

We’ve long known developers of cyberattacks to be crafty and focus a lot of energy on obfuscation, but a new attack can shift gears midstream, delivering just the right malware.

Scammer Group Uses Business Email Compromise to Impersonate European Investment Portals

A sophisticated scammer group has stolen at least €480 million from victims in France, Belgium, and Luxembourg since 2018, according to researchers at Group-IB. The gang uses a highly ...

[Eye Opener] Cybersecurity Resilience Emerges as Top Priority as 62% of Companies Say Security Incidents Impacted Business Operations

Cisco's annual Security Outcomes Report shows executive support for a security culture is growing. The report identifies the top seven success factors that boost enterprise security ...

Cyber Insurers Focus on Catastrophic Attacks and Required Minimum Defenses as Premiums Double

Recent attacks are helping cyber insurers better understand what security strategies need to be in place and how to price policies based on the risk those policies cover.

Archives Overtake Office Documents as the Most Popular File Type to Deliver Malware

Taking the lead over the use of Word, Excel, PDF, and other office-type documents in attacks, new data shows that files like ZIP and RAR have grown in popularity by 11% last quarter.

[On-Demand] Ransomware, Ransom-war and Ran-some-where: What We Can Learn When the Hackers Get Hacked

Ransomware strikes organizations almost every two seconds. Tales of bad actors doing their worst fill the InfoSec news cycle, but what happens when the hackers get hacked?

Russian Threat Actor Impersonates Aerospace and Defense Companies

A Russia-linked threat actor tracked as TAG-53 is running phishing campaigns impersonating various defense, aerospace, and logistic companies, according to The Record by Recorded Future. ...


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