365 Sustainable Decisions Challenge

  😲 A normal morning - until suddenly everything comes to a standstill: systems locked, data encrypted, a ransom demand for $80,000. That’s what I talked about in a recent episode of the SWR podcast. 💰 I was a guest on SWR’s “Streifenfragen” and explained why ransomware is so attractive to attackers and what really lies behind such attacks. I also addressed the crucial question: Should you pay or not? 🌍 And the investigators explained: such cases are rarely local. They are part of international networks, highly professionally organized, and often difficult to track down. ❣️ My most important takeaway: Prevention isn’t a “nice-to-have”, it is essential for survival. Backups, security strategies, and awareness determine whether a company remains operational or, in the worst-case scenario, goes bankrupt. 🎧 An exciting episode (in German) about cybercrime, cross-continental investigative work, and the reality of digital extortion. https://www.swr3.de/podcasts/cybercrime-auf-de...

  🫨 Imagine coming home and realizing someone got in. Nothing is broken, but drawers are open, rooms have been checked, and things are missing. 🏠️ I often feel like the burglar who did this when I test websites. I log in as a normal user and start looking around. With a small change, I suddenly end up in places I shouldn’t be. Other people’s accounts. Admin pages. Private data like names, email addresses, and order details. 😇 But in my case, probably no one will ever notice if I wouldn’t explain this in the report. 💡 I see this more often than you’d expect. If you run a website and have ever wondered how easy it is for someone to “walk in”, feel free to reach out.

  I'm honored to be rated as Top 100 Trainer by Speakers Excellence Deutschland Holding GmbH! I offer trainings, keynotes, andpresentations on three hot topics: #cybersecurity, #artificialIntelligence, and #sustainability - whether individually or where these fields intersect. I also test whether your website can be hacked. 💡 Interested in bringing fresh insights to your team, event or website? Let’s connect and explore collaboration opportunities!

  💬 Many of us assume our WhatsApp messages are completely safe because they’re protected by end-to-end encryption. But this is not quite true! ⚛️ Last week, I had the chance to join a guided tour at the Fraunhofer Institute for Industrial Engineering IAO "Quantum Lab". While AI continues to dominate headlines, researchers are already working on the next potentially world-changing technology: Quantum computing. 💡 One of the mind-blowing characteristics of quantum computers is that they can solve certain mathematical problems much faster than today’s computers. This is important to know, because many of the #encryption methods we rely on today – including those used to secure WhatsApp messages – are based on mathematical problems that are extremely difficult for current computers to solve. ❗ Quantum computers could change that. ℹ️ This means that your messages are safe today, but once quantum computers mature, they may be able to break today’s encryption standards far ...

  🥹 Wow, I didn’t expect this and made it an unforgettable experience: 🎇 At the Winterconference organised by the German Speakers Association, I was genuinely blown away by the positive feedback I received after my keynote! 🤖 This year’s conference focused on #ArtificialIntelligence, exploring both its incredible opportunities and the challenges it brings. As a #cybersecurity expert, I chose to focus on a side of #AI that often surprises people: how AI systems can be hacked. 🎤 During my keynote, I demonstrated how a chatbot can be manipulated to reveal sensitive personal data and even answer unethical questions. I could literally see stunned faces and jaws dropping. 😁 I truly enjoyed giving this presentation. And judging by the reactions in the room, the audience enjoyed it just as much. 🙏 What made the feedback afterwards especially meaningful to me is who it came from: fellow professional speakers who are used to seeing excellent presentations. Receiving such positive...

  🎉 Happy to share that I’ve passed another exam: CompTIA Network+ I took it mainly to be able to even better support my students as they prepare for their own exams. And along the way, I learned even more about how computer networks work and how to keep them secure. Always learning, always leveling up 💪

💡 Today reminded me why digital safety matters so much. A customer reached out in worry because her screen kept showing warnings that her antivirus was outdated. 🤔 Something felt off to her though, because he had just renewed her license. After a quick check, the cause became clear to me: she had stumbled into fake virus alerts, often called scareware. ⚠️ Here is the brief version of what I explained to her: After visiting a malicious site, this scareware showed up as alarming popups claiming her device was infected. These popups often use dramatic language, push you to act quickly, and try to trick you into installing fake security tools, clicking harmful links, or contacting scammers who want remote access to your device. ❗ Common warning signs include sudden popups, payment requests, phone numbers to call, strange links, grammar mistakes, simple or odd designs, unknown software names, and alerts that don’t behave like normal system notifications. When this happens, the safest ...

😵‍💫 How can you get rid of a corpse? 🎤 This was the guiding question of my recent presentation about chatbot hacking, which turned out to be a huge success! 💬 One participant told me afterwards: “I was deeply impressed, because you managed to provide in depth content in a very entertaining way.” 😊 I’m super happy that I was able to share my story, because during the past 1 to 2 years, many companies have rushed to start using AI tools. These tools are incredibly helpful to boost productivity and increase profits so that’s perfectly understandable. ⚠️ But when AI is used without the right guardrails, things can go very wrong. It can, for example, be misused to steal sensitive business data or support unethical activities. Like, for example, getting rid of a corpse. 💡 Understanding how AI can be used — and misused — helps us build stronger safeguards. That way, we can make sure AI serves as a force for good, not harm. 📹 I’ll share the link to the recording of the presentati...

The last two months turned out to be a bit too busy, but all worked out extremely well, so I'm excited that I have managed to pass the exam for CompTIA Cybersecurity Analyst! To me, it is not only a confirmation of my knowledge. It also shows my passion for making our world a safer place through my mission Unhackable! Now, I will enjoy a fun weekend, to recharge and continue this mission next week!

  💡 Ich habe eine einmalige Gelegenheit für diejenigen, die sich für Digitale Transformation, #Cybersicherheit und KI interessieren! 📅 Am Freitag 17.10. gibt es in Böblingen (bei Stuttgart) ein großes Event mit einer #nxtDigital & #AI Stage. 🎤 Hier werden verschiedene Sprecher:innen über den neuesten Stand der digitalen Transformation, und Tools und Strategien sprechen, die für Unternehmen wichtig sind, sich zukunftssicher aufzustellen und die Wettbewerbsfähigkeit zu steigern. Auch gibt es ausführlich die Gelegenheit, zu netzwerken. 🎟️ Normalerweise kostet ein Ticket €197, da ich aber einer der Sprecher:innen bin, kann ich ein paar Tickets kostenlos anbieten. Ich werde z.B. live zeigen, wie Cyberangriffe aussehen können und man sich schützen kann. 👉 Falls du Interesse hast mehr zu erfahren oder dabei sein möchtest, gib mir gerne Bescheid.

❔ Yesterday, I was asked what the main problem is with being hacked. Being hacked shouldn't be taken lightly, as it can shake the very foundation of a business and even your personal life. 💡 As a #cybersecurist, I see daily why taking care of #cybersecurity is crucial. Here’s a quick overview of the risks: - 💰 Financial consequences: being hacked can cost a lot of money, for example because of fines or for paying off cyber criminals - 💔 Reputation loss: being hacked doesn't look good to customers, especially when their personal information has been stolen - ⚖️ Legal consequences: being hacked can for example go against contracts or break the law, which can result in fines and lawsuits - ⏳ Operations can be disrupted: working normally may not be possible anymore, which means that products and services cannot be offered timely, which can lead to losing customers and - in worst case - going bankrupt - 🔒 Sensitive information theft: hackers can be after sensitive inform...

  🛡️ As part of my Mission Unhackable, I support companies in improving their cybersecurity. As AI is on the rise quickly, many organizations adopt it as quickly as possible. But speed can be dangerous: ⚠️ Too often, the other side of the coin is forgotten: the risks. 🤖 That’s why I’m looking forward to my upcoming event, where I’ll show how chatbots can be hacked and how we can protect ourselves. 🙅‍♂️ Not to turn anyone into a hacker, but to raise awareness of what can go wrong, so that together we can improve protections. 👇 Join me on Thursday August 21st, 3 pm, to learn how we can make the AI revolution more secure for everyone. (The event will be in German) https://youtube.com/live/Pzat8uCjN1g

  💪 After teaching the CompTIA Security+ course multiple times to students eager to become a cybersecurity expert, and professionals in the field, I decided it was time to challenge myself as well: 🎉 It had been years since I last sat for an exam, so it was both exciting and a bit nerve-wracking... but I’m thrilled to share that I successfully passed the Security+ certification yesterday! 🔐 This globally recognized certification confirms a strong foundation in essential #cybersecurity principles: from identifying and mitigating security threats to managing risk, securing networks, and understanding cryptography and incident response. 🌍 But these are not just technical skills. They’re skills for protecting people, organizations, and critical systems from cyber attacks. And in a world that’s becoming more digital each day, that means contributing to a safer, more resilient, and more trustworthy internet for everyone. 💚 I will continue applying this knowledge not just in cor...

💡 Many of us use AI every day, I do too. I think it's an incredible technology that makes my life easier in many ways. But here’s something we often forget: if AI isn’t secure, we can get into real trouble. 🤖 Whether you're an individual or a company, securing AI systems is no longer optional, it's essential. ✒️ I showed why this is essential in a recent course on the EU-AI Act. In my example, I hacked an AI-supported job application portal, to make sure I was invited to a job interview for a shop manager role, even though I’m completely unsuitable for that job. That’s one of the risks when AI systems are vulnerable to manipulation. 🔐 In this video, you can see how I achieved this (with English subtitles): https://youtu.be/g1wzhd1b9S0 And don’t worry, I won't start a role as shop manager as I'll continue working toward a more secure future for all. 😊

Do you want your Facebook profile be used to create a copy of you using AI? If you - just like me - don't want Facebook to use your posts, photos, comments and so on to train their AI, you need to submit the form "Object to Your Information Being Used for AI at Meta". Before May 26th, as after that, it is not possible to object anymore. Here is the direct link to the form which I just used used to opt out: https://www.facebook.com/help/contact/6359191084165019 And here is the link for Instagram: https://help.instagram.com/contact/233964459562201

  🔒 After my cybersecurity talks, I often hear the same thing: "I have antivirus software, so I’m safe." Not quite. Antivirus is important — like a lock on your front door. But just like locks don’t stop all attempts from thieves to get in, antivirus doesn’t stop all cyber threats. 💡 Hackers use many tactics that antivirus software can’t catch — such as guessing passwords or exploiting weak security settings. ✅ So yes, install antivirus software. But also: - Use strong, unique passwords - Store them safely (consider a password manager) - Never reuse passwords This will help you to stay safe! https://youtu.be/FEaZK0A0SW0

  🚨 Cyber Security Tip of the Day 🚨 Recently in my Cyber Security course, we talked about making mobile devices safer. One message stood out so strongly that I found myself repeating it over and over: ✨ What doesn’t exist, can’t be attacked. ✨ Think about it — if you don’t own a car, it can’t be stolen. The same goes for your apps and online services. 👉 Every app you don’t use is a door that hackers could try to open. 👉 Every unnecessary service is a possibility that attackers could try to misuse. Take action today: 🧹 Review your mobile device and deactivate or delete all apps you don’t truly need. 🧹 Deactivate services such as Bluetooth, WiFi, AirDrop, hotspots, etc. when you don't use them. 💻 Every small step makes a big difference toward a safer, more sustainable digital life. https://youtu.be/Y1G6XXuubMU

In den letzten Wochen habe ich mir eine spannende Aufgabe gestellt: Ich werde bald zeigen wie die KI eines Bewerberportals gehackt werden und man sich davor schützen kann! Denn KI verändert nicht nur die Arbeitswelt – sie birgt auch neue Risiken für Unternehmens-Prozesse. Am 29.4. ist es so weit! Im Online-Seminar "KI-Excellence"! In diesem Seminar gehen wir auf die neue EU-KI-Verordnung ein, denn diese Verordnung trifft Unternehmen mit voller Wucht. Bußgelder und Reputationsverluste drohen, wenn Sie nicht nachweisen können, dass Ihr Team im Umgang mit KI-Systemen ausgebildet ist. 👍 Mit praxisnahen Tipps und Fallbeispielen, die Sie sofort im Unternehmen umsetzen können 👍 Erhalten Sie ein Teilnahmezertifikat – als Nachweis für Ihre KI-Compliance-Schulung. 📅 Datum: 29.04.2025, 9:30–16:00 Uhr 🎓 Mit Expert:innen: Dr. Erlijn van Genuchten, Dr. Marc Maisch, Roger Basler de Roca, Michele Fuhs, anerkannten ExpertInnen aus Recht, IT-Security und Business Consulting Präsentiert...

Yesterday, I had the pleasure of showing how AI can be hacked. A very important topic: with the EU's new AI law, companies that neglect their cybersecurity risk fines of up to 15 million euros or 3% of their global annual turnover. 🔐 Is your company already using artificial intelligence? Then now is the right time to think about security. A big thank you to Speakers Excellence for organizing such a great event, Jana Kulhavy for the excellent moderation, and to fellow speakers Dr. Marc Maisch and Roger Basler de Roca for their super important contributions!

Die Digitalisierung ist kein Trend – sie ist Realität. Deswegen freue ich mich, am 17. Oktober 2025 auf der #nxtDIGITAL & AI Stage zu stehen. Hier dreht sich alles um #KünstlicheIntelligenz, digitale Geschäftsmodelle und neue Technologien, die unsere Arbeitswelt verändern. Wenn du erfahren willst, wie du Digitalisierung nicht nur verstehst, sondern für auf sichere Art und Weise für dich nutzt – dann bist du hier genau richtig. Ich freu mich auf dich! Save the date: 📍 Kongresshalle Böblingen 📅 Freitag, 17.10.2025 🔗 www.speakers-excellence.de/veranstaltungen/nxtknowledge-stuttgart