Blog

Client case Tozetta x ACE: More peace of mind through periodic pentests

A loyal client shares how Tozetta provides support through periodic penetration tests and a continuous improvement process.

Client case Tozetta x POM: How a security training managed to surprise the development team

POM shares how an experienced software development team was surprised during a technical security awareness training given by hackers.

Event: Dutch Caribbean Cyber Conference Aruba 2026

The Dutch Caribbean Cyber Conference brings experts together to discuss the latest trends, threats, and solutions in cybersecurity.

Event: Dutch Caribbean Cyber Conference Curaçao 2026

The Dutch Caribbean Cyber Conference brings experts together to discuss the latest trends, threats, and solutions in cybersecurity.

A Phishing Email That Feels Too Real

A phishing email via a real Microsoft SharePoint link shows how attackers abuse legitimate infrastructure for their phishing attack

Customer Case Tozetta x SVC Groep: More Confidence in Digital Resilience

SVC Groep shares how a pentest by Tozetta provided insight, clear priorities, and more confidence in their cyber security.

Event: Dutch Caribbean Cyber Conference

The Dutch Caribbean Cyber Conference brings together experts to discuss the latest trends, threats and solutions in cybersecurity.

Digital Negligence Is No Longer an Option

Cybercrime is also present in the Caribbean region. After a hack at a government agency, we need to wake up and change.

Finding and exploiting four vulnerabilities in a router (Nexxt NCM-X1800 mesh router)

Carrying Out an ISO 27001 Pentest

Carrying out a pentest is part of various cyber security standards and guidelines — this includes an ISO 27001 pentest.

Customer Case Tozetta x McMain: In Control of Information Security

Read in this article how Tozetta supports its partner McMain in continuously exposing vulnerabilities within their systems.

Carrying Out a DigiD Pentest: Tozetta Ethical Hacking's Approach

A DigiD pentest is a mandatory part of the NOREA DigiD Assessment guidelines. Read more here about DigiD pentest requirements.

The Impact of Cloud Computing on Cybersecurity

In this blog we discuss the impact of Cloud Computing on cybersecurity. Penetration testing helps improve cybersecurity.

What is NAC (Network Access Control)?

What is Network Access Control (NAC) and how does it help your organization towards improved cybersecurity? Learn about it in this blog on NAC.

What is a Brute Force Attack?

What is a Brute Force Attack? And how do cybercriminals use it? In this blog, you'll learn everything about this form of cybercrime.

What is a Dictionary Attack?

What is a Dictionary Attack? And how do cybercriminals use it? In this blog, you'll learn everything about this form of cybercrime.

How Do Cybercriminals Get My Password?

How do cybercriminals get hold of my password? In this blog series, you'll learn all about different types of cybercrime.

What is a Reverse Brute Force Attack?

What is a Reverse Brute Force Attack and how do cybercriminals use it? In this blog you'll learn everything about this attack.

Hiding Malware in SVGs: A New Threat to NFTs

At Tozetta, we discovered a new way to hide malware in SVGs. This has a major impact on cyber security.

Is My Business Cyber Secure?

Entrepreneurs rightly ask themselves: Is my business cyber secure? In this blog, you'll find out and make your organization more cyber secure.

Pentest for Software Companies

A penetration test (pentest) offers insight into vulnerabilities of software applications before malicious actors discover them. Read more here.

What Is Client-Side Template Injection (CSTI)?

Our hackers love sharing knowledge about the most common and interesting vulnerabilities. Read more about what a CSTI vulnerability is.

The Dangers of Opening Email Attachments - A Hacker's Perspective

From our work as hackers, we share more about the danger of opening email attachments for your cyber security.

Customer Case: Tozetta x Sensing Clues

Sensing Clues, a non-profit organization, wanted to take the next step in cyber security. Tozetta helped with a pentest.

What is IPv4?

The terms IPv4 and IPv6. What exactly is IPv4, and why is a transition even necessary? If you want to know more, you can read our blog.

Tozetta Joins the Dutch Chamber of Commerce Phishing Webinar

Tozetta, the pentest specialist, shared its expertise at the Dutch Chamber of Commerce (KvK) webinar on phishing. Ian van der Wurff joined on March 26, 2024!

What is the TOR Network?

Curious what the TOR network is and who operates on it? Find out in our blog about TOR and cybercrime.

The Role of Pentesting in Your Cybersecurity Strategy

Discover why pentesting is essential in your cybersecurity strategy. Learn how Tozetta can help you identify weak points.

Customer Case: SeniorWeb x Tozetta

Carrying out a pentest at Tozetta — how does that pentest process work? SeniorWeb is a Tozetta client and tells us more about the collaboration.

The Importance of Cyber Security Awareness

What is the importance of cyber security awareness for your organization? In this blog, we tell you more about cyber security awareness.

Cyber Security at My Company: How Does a Pentest Help?

In this blog, we discuss the route toward a digitally safer company. Carrying out a pentest offers several benefits for your organization.

What is a good password policy?

A good password policy is a relative concept. However, as hackers we can tell you the best way to roll out this password policy.

How Hackers Help Improve Your Cybersecurity

How do hackers help improve cyber security? The pentest specialist explains it in this blog about cybercrime and (ethical) hacking.

The Value of Pentesting for Your Cyber Security

Carrying out a pentest helps improve your cyber security. Curious what a pentest could mean for your organization?

Cyber Secure Through Continuous Pentesting: Your Route to Uninterrupted Business

Want to learn how continuous pentesting helps your organization in the fight against cybercrime? Read more about our webinar of March 21, 2024, and sign up.

The Importance of Independent Pentests in Cybersecurity

The importance of carrying out independent pentests lies in the objective, fresh perspective they bring to existing IT solutions.

The Role of Pentests in IT Compliance

How do you stay in control of your information security? By continuously scanning for vulnerabilities and regularly carrying out a pentest.

Tozetta Hackers - 1st Place at Hâck the Hague

Tozetta, a Dutch company specialized in pentesting, has won the second edition of Hack The Hague.

keep your online accounts secure with these simple tips

Learn how to create strong passwords to protect your online accounts and discover how to stay safe on the internet.

The Role of AI in Cyber Security

Discover how AI powers both cybercriminals and security measures. Learn how organizations deploy AI for cyber defense.

Security Awareness Training

Discover the importance of security awareness training in today's digital world and learn how it can protect your business.

The Importance of Hacking

Ethical hacking: protection against cybercrime, data loss and reputational damage for a secure digital future.

How to Protect Yourself Against Phishing

Learn how to arm yourself against phishing attacks. Discover practical tips for recognizing and avoiding phishing.

Cybersecurity for Businesses: An Introduction to Digital Safety

Discover the basics of business cybersecurity in our introduction. Learn essential tips to protect your company data online.

Cryptojacking: How Cybercriminals Use Your Computer to Mine Cryptocurrency

Discover what cryptojacking is, how cybercriminals use your computer to mine cryptocurrency, and learn how to protect yourself.

The Event You Don't Want to Miss

Tozetta gives a cyber security presentation at an event for entrepreneurs in the municipality of Wijk bij Duurstede.

Webinar: Cybersecurity tips from a hacker!

Sign up for the webinar and learn how to protect your organization against cyberattacks!

Customer Case: Infowijs x Tozetta

In this customer case, Patrick van Marsbergen, Tech Lead at Infowijs, talks about the collaboration between Infowijs and Tozetta pentest specialist.

Difference Between Lokinet and TOR

Discover the crucial difference between Tor and Lokinet for online privacy. Tor for anonymous browsing and Lokinet for private communication.

What is Lokinet?

Lokinet: The decentralized network for privacy and anonymity. Discover how Lokinet protects your online activities.

How Does Tozetta's Pentest Subscription Work?

A pentest subscription offers your organization various benefits. Besides monthly testing, the pentest costs stay predictable.

What Is Pentesting as a Service and How Does It Work?

Discover how a pentest subscription (PTaaS) — Pentesting as a Service — offers organizations a cost-efficient way to manage their cyber security.

What is pentesting and why is it important?

Discover the importance of pentesting and how ethical hackers help companies improve their cybersecurity.

What does a pentest cost?

What does a pentest cost? For transparent pentest pricing you can turn to Tozetta. We offer clarity and a pentest subscription for SMEs!

How Hackers Find Data Breaches in Your APIs

Discover why API security is crucial against hackers and how Tozetta pentest specialists can help you protect your systems.

How Hackers Bypass JWT Token Authentication

Learn how hackers can exploit vulnerabilities in JWT tokens and discover how to improve the security of your web applications.

Affordable Pentest

Getting a pentest done is a great way to boost your cyber security. But are there affordable pentests too? Read more in this blog!

Pentest Challenges

Carrying out a pentest? This comes with many challenges, both before and after the pentest is carried out. Read more about pentesting here!

What is a DMZ?

A DMZ is a separate network that acts as a buffer or firewall system. A so-called DMZ ensures increased cybersecurity.

What is the Deep Web?

In many cases, people don't actually know what the deep web is and what the difference is with the dark web. Read more about the deep web here!

What is the I2P network?

The I2P Network is an anonymous network that allows users to browse with a high degree of privacy. Read more about I2P here.

What is a Trojan?

A Trojan infection is a form of hacking that puts you as an individual/organization at risk. In this blog we explain what a Trojan is.

What is Red Teaming?

Red teaming is a way to increase cybersecurity at your organization. Tozetta can support you in increasing cybersecurity.

Financial Damage After a Hack

The risk of financial damage after a hack can be limited. Improving cyber security is enormously important nowadays. We're happy to help.

How Do I Get an ISO27001 Certificate?

Getting an ISO27001 certificate is not easy. However, we're happy to help you understand the first steps.

How Do Hackers Use the TOR Network?

Hackers use the TOR network to secure their privacy and anonymity. The TOR network offers hackers countless possibilities.

What are Marketing Cookies?

Discover how marketing cookies help companies show targeted ads, better understand visitors, and increase conversions.

How Do You Recognize a Phishing Page?

Want to know how to recognize a phishing page? At Tozetta we've seen countless phishing pages and explain how to spot them.

How Do Criminals Use OSINT?

How do criminals use OSINT? Learn how they gather information about targets and carry out targeted attacks and threats.

Reputational Damage After a Hack

What's the damage after a hack, and can it be prevented? Read more about it in this blog on the damage after a hack.

What is Metasploit?

Metasploit is an open source toolkit for exploitation and security research. It is a powerful tool.

What are criminal hackers?

Criminal hackers can show up at your door in no time. How do you reduce the chance of a hack at your company? Tozetta is happy to help.

Crime on Telegram

How do criminals use the messaging service Telegram? In this blog we explain why crime on Telegram is so popular.

Difference between deep web and darknet

What is the difference between the deep web and the darknet? At Tozetta we explain the difference in an easy way.

How Do Hackers Use Bitcoin?

This blog explains how hackers use Bitcoin to pay anonymously and hide their activities.

Running a Pentest? Watch Out When Hiring Hackers!

Running a pentest? What should you look out for when hiring hackers? In this blog we tell you more about the preliminary stage of a pentest.

The Most Notorious Hacker Groups

We tell you more about the notorious hacker groups that are active. There are countless groups — we highlight the most well-known ones!

What is the difference between TOR and i2p?

What is the difference between Tor and I2P? Both are anonymous networks that help protect privacy and anonymity on the web.

What is blacklisting

Blacklists are an effective tool for countering cybercriminals. Read how they work and how you can use blacklisting.

What is CSRF?

CSRF attacks are a growing threat to internet users. In this blog, you'll learn how these attacks work.

What is a computer virus

What exactly is a computer virus, and why is it a danger? In this blog, Tozetta, as a cybersecurity specialist, tells you more about it.

Why Do Criminals Use Monero?

Monero is a decentralized cryptocurrency that offers a high degree of privacy. This makes it a popular choice among criminals.

How Do You Prevent Phishing Attacks?

How can you prevent phishing? We answer the question in our blog. At Tozetta, we're the cyber security specialist supporting you!

Why is using a VPN important?

Is using a VPN important? Besides the benefits, Tozetta also explains exactly what a VPN network is. Curious? Keep reading.

What is a Zero-Day?

A zero-day is a major danger for every company. In this blog we tell you more about what a zero-day is and ways to prevent it.

What is IPv6?

IPv6 is the future of the internet. It offers a number of advantages over IPv4, including a larger address range.

What is cryptojacking?

This blog explains how cybercriminals use cryptojacking to steal cryptocurrency. Cryptojacking is a growing problem.

2FA: What is it and why is it important?

Two-factor authentication is a good cyber security measure to secure your accounts. It reduces the risk of getting hacked!

What is HTTPS?

HTTPS is an encryption protocol used to securely send and receive data over the internet.

Deploying Honeypots to Counter Hackers

Honeypots are a useful tool for countering hackers. Learn how honeypots work and how they can be used.

What is Phishing via SMS?

SMS phishing is a form of cybercrime in which cybercriminals try to obtain personal information.

How Do I Stay Safe Online? 6 Tips from a Hacker!

How do you stay safe online? With these 6 tips from an ethical hacker, your business becomes more resilient against cyberattacks!

What is SQL injection

An SQL Injection is a danger to your organization. In this blog we tell you about the SQL Injection cyberattack and how to prevent it.

What is SQL injection?

This blog explains what SQL injection is and how you can protect your company against this form of cyberattack.

What is Spam?

Spam is a form of unwanted electronic communication that can lead to identity theft and other problems.

What is antivirus software?

Tozetta takes you into the world of antivirus software. How do you protect your computer against various forms of cyberattacks?

No More Ransom Project

Nomoreransom is a project that shares free decryption tools and other tips. Its aim is to help businesses counter ransomware.

What is SHA256?

This article explains what SHA256 is and how it works. SHA256 is an algorithm used to encrypt data.

What is OSINT?

OSINT stands for Open Source Intelligence. In this blog, we at Tozetta tell you about the applications of OSINT & how hackers use it.

What is SPF?

SPF is a simple way to protect your domain against spam. Learn how to set up SPF and keep your domain secure.

What is Social Engineering?

This blog explains how social engineering works and how it can be used to deceive you.

Webcam Hack

Curious how hackers carry out a webcam hack? Besides how it's done, we also give tips for preventing a webcam hack.

What is Linux Tails OS?

Tails is a very powerful operating system you can use to protect your privacy. Discover what Linux Tails OS is used for.

What is WannaCry

WannaCry is one of the biggest ransomware attacks ever. It is ransomware developed for the Microsoft operating system.

What is DKIM (DomainKeys)?

This blog explains what DKIM, or DomainKeys, is, how it works, and how it can help you prevent spam and fraud.

What is an ethical hacker?

Ethical hackers are extremely valuable when it comes to strengthening your Cyber Security. Curious what an ethical hacker actually does?

What is an IP Address?

This blog explains what an IP address is, how they work, and why they are important for the internet.

What is a pentest?

What is pentesting? This is a question that Tozetta, as a hacking specialist, answers for you. Read on to learn about the different forms of pentesting.

What is a brute-force attack?

This article explains what a brute-force attack is, how it works, and how you can protect yourself.

What is DMARC

DMARC is a must-have for companies that want to secure their email traffic. It helps reduce spam and phishing.

What is Cross Site Scripting (XSS)

This blog explains how XSS works and how it can be used to steal sensitive information.

How Do Hackers Steal Credit Cards?

How do hackers steal credit cards? This happens in countless ways... We're happy to explain how you can prevent this. Read the Tozetta blog.

How Are WiFi Passwords Hacked?

There are countless cyberattacks, including the hacking of WiFi passwords. We tell you more about how your WiFi password gets hacked.

What is OWASP?

Open Web Application Security Project is an association of tech professionals focused on improving software security.

5 ways hackers hide their identity

Curious how hackers hide their identity online? Read our blog where our Ethical Hackers reveal their methods.

Ransomware Attack on Colonial Pipeline

In May 2021, Colonial Pipeline's network was hacked. In this blog, we take a closer look at this event. Want to prevent this yourself?

Deepfakes and Crime

Deepfake cybercrime is a major problem. More and more hackers are using it to steal your identity. Read more here.

Tips for Creating a Strong Password

In this blog, you'll get hands-on tips for creating strong passwords. Don't just read the blog — use the password creation tips too!

What is a DDoS attack?

In this blog, we explain what a DDoS attack is. We also cover how a DDoS attack can be prevented, thereby increasing your cybersecurity.

How a Hacker Uses a Botnet

A hacker uses botnets in various ways. Tozetta's Ethical Hackers explain how malicious hackers deploy them.

What is PGP?

PGP stands for Pretty Good Privacy and ensures that messages or files are encrypted. In this blog you'll find everything about PGP.

What is a Botnet?

In this blog, we explain what a botnet is and how you can prevent it. Prevent cyber incidents and increase your cybersecurity with Tozetta.

What is exif data?

In this blog you can read more about exif data and its value within OSINT investigations. Find out what you can learn from Exif data!

Hackers and Cryptocurrency

Hackers and cryptocurrency are inextricably linked. Hackers use cryptocurrency to stay untraceable.

Recognizing Fake News

Fake news and online deception are a major problem. Cyber security is enormously important. We tell you more about recognizing fake news.

The Most Notorious Ransomware Groups

There are many notorious ransomware groups; in this blog we cover the most well-known ransomware hacker groups. Read more here!

What are black hat hackers?

Black hat hackers pose a serious threat to companies. Learn how to protect your company against these malicious attacks.

What is a firewall?

Using a firewall and improving your cyber security is extremely important. In this blog we tell you more about firewalls.

What is Ransomware

Ransomware is a form of cybercrime that poses a great danger to your company. In this blog we dive deeper into ransomware.

Network Security

Network security can of course be improved. It boosts your organization's cyber security — read more about network security.

What forms of cyberattacks are there?

What types of cyberattacks are there? Hackers use various methods to make companies and individuals their victims, read more!

4 reasons why cyber security is important for your organization

Why does your organization need cyber security? At Tozetta we can think of countless reasons! Read about cyber security at Tozetta.

What is pentesting and how does the process work?

In this blog we tell you more about what pentesting is. Pentesting helps a company gain insight into where their online vulnerabilities lie.

5 Cyber Security Tips

5 free tips to boost Cyber Security at YOUR organization. These cybersecurity tips are quick and easy to apply.

What is smishing?

This blog explains how to recognize smishing. Smishing is a form of phishing carried out via SMS.

What is CEO fraud

This article explains how CEO fraud works and how criminals can rob your company. CEO fraud is a form of phishing.

What is phishing?

What is a phishing attack and what are the dangers of a phishing attack? Criminals operate in a cunning way.

How Is a URL Structured?

This blog explains how to recognize a secure URL. A secure URL starts with https and has a valid subdomain.